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Troutdale City Zoning Code

CHAPTER 3

ZONING DISTRICTS

3.010 - Purpose.

This Chapter contains land use allowances and dimensional standards for development of lots that are designated a particular zoning district as contained in Section 3.020 of this Code. Development and design standards are contained within Chapter 8 of this Code.

3.020 - Zoning District Outline.

All areas within The City limits of Troutdale are divided into the following zoning districts. The use of each tract of land within the corporate limits of the City of Troutdale shall be limited to those uses permitted within the applicable zoning district.

SymbolDistrict NameTDC Section
Residential Districts3.100
LDR-1 Low-Density Residential (formerly R-20 & R-10)3.111
LDR-2 Low-Density Residential (formerly R-7)3.112
MDR Medium-Density Residential (formerly R-5 & R-4)3.113
HDR High-Density Residential (formerly A-2)3.114
Mixed-Use Districts3.200
MU-1 Downtown Mixed-Use (formerly CBD)3.211
MU-2 General Mixed-Use (formerly MO/H & NC)3.212
MU-3 Urban Mixed-Use 3.213
Commercial Districts3.300
CC Community Commercial 3.311
GC General Commercial 3.312
Industrial Districts3.400
IP Industrial Park 3.450
LI Light Industrial 3.460
GI General Industrial 3.470
Other Districts3.500
OS Open Space 3.520
UPA Urban Planning Area — unincorporated areas with city zoning 3.040
NSA National Scenic Area — incorporated areas with county zoning 3.050

 

3.030 - Zoning District Map.

A.

The Zoning District Map and all amendments to the map shall remain on file in the City Recorder's office.

B.

The boundaries of all districts are established as shown on the Zoning District Map.

C.

Zoning district boundary lines are intended to follow property lines; lot lines; centerlines of streets, alleys, streams, or railroads; or the extension of such lines except where reference is made on the map to a street line, political boundary, or other designated line by dimensions shown on said map.

D.

The exact location of zoning district boundary lines shall be interpreted by the Director or designated official.

E.

Whenever any street, alley, or other public way is vacated by official action, the zoning district adjoining the side of such public way shall be automatically extended, depending on the side or sides to which such lands revert, to include the right-of-way thus vacated, which shall be subject to all regulations of the extended zoning district or districts.

3.040 - Urban Planning Area.

The City of Troutdale holds zoning authority over certain areas that are located in unincorporated areas of Multnomah County and within the regional Urban Growth Boundary. These areas include those areas which are identified in Goal 14 — Urbanization in the Comprehensive Land Use Plan and through an effective intergovernmental agreement between the agencies. In accordance with Goal 14 and the intergovernmental agreement, most future development in the Urban Planning Areas shall require annexation into the City of Troutdale. Lots in Urban Planning Areas have an assigned zoning district and are designated with a "UPA" prefix in front of the corresponding zoning district.

3.050 - National Scenic Area.

Multnomah County holds zoning authority over certain lots that are located within incorporated areas of the City of Troutdale that are within the federally-designated Columbia River Gorge National Scenic Area. These affected lots maintain County zoning district designation in accordance with Chapters 38 and 39 of the Multnomah County Code and the official zoning district map for Multnomah County. The City of Troutdale retains certain development standards and regulatory authority as identified in Chapter 1 of this Code and established through an effective intergovernmental agreement.

3.060 - Unlisted or Similar Uses.

When a proposed land use is not clearly identifiable as an existing land use as defined in this Code, the Director is authorized to provide written interpretation that a use is comparable or similar in nature to an existing permitted or conditional use for the corresponding zoning district. The Director may also require an applicant to file for a Director's Interpretation as provided within Section 6.400 of this Code or may refer the matter to Planning Commission as provided within Section 2.010 of this Code.

3.110 - General Purpose.

The purpose of residential zoning districts is to provide dedicated residential areas in neighborhood settings. Through the Comprehensive Land Use Plan, there are four (4) general classifications of densities that are established with general assumptions on current land use patterns and future development expectations. The zoning districts listed within this Section are associated with their correlating land use designation.

(Ord. No. 894, § 2, 12-10-2024)

3.111 - LDR-1 - Low-Density Residential.

This district is intended primarily for low-density development patterns that consist of single-family detached dwellings and middle housing typologies, with lot sizes typically ten thousand (10,000) square feet in size or greater. Lots above twenty thousand (20,000) square feet are generally appropriate in areas where natural features such as slope, flood plain, soil condition, etc., make these areas difficult to serve or inefficient to develop at higher densities. This zoning district is not applicable for areas or lots within the Town Center district. (Previously R-20 & R-10)

(Ord. No. 894, § 2, 12-10-2024)

3.112 - LDR-2 - Low-Density Residential.

This district is intended primarily for low-density development patterns that consist of single-family detached dwellings and middle housing typologies, with lot sizes typically between seven thousand (7,000) to ten thousand (10,000) square feet in size. This zoning district is not applicable for areas or lots within the Town Center district. (Previously R-7)

(Ord. No. 894, § 2, 12-10-2024)

3.113 - MDR - Medium-Density Residential.

This district is intended primarily for the development of smaller-lot single family dwellings on lots of four thousand (4,000) to seven thousand (7,000) square feet in size and to accommodate middle housing typologies on appropriately scaled lots. This district has certain use, dimensional, and design distinctions that are location-dependent in the City as described below and elsewhere within Chapters 3 and 8 of this Code. (Previously R-5 & R-4)

A.

MDR-zoned areas and lots outside the Town Center district are typically located in areas adjacent to arterial and collector roads and preferably near commercial areas, civic uses, and parks.

B.

MDR-zoned areas and lots within the Town Center district are typically located and in the western and southern peripheral neighborhoods surrounding the Downtown area.

(Ord. No. 894, § 2, 12-10-2024)

3.114 - HDR - High-Density Residential.

This district is intended primarily for the development of multi-family residential buildings or complexes and to accommodate certain middle housing typologies on appropriately-scaled lots. This zoning district has certain use, dimensional, and design distinctions that are location-dependent as described below and elsewhere within Chapters 3 and 8 of this Code. (Previously A-2)

A.

HDR-zoned areas and lots outside the Town Center district are typically located in areas adjacent to arterial and collector roads, be served by current or expected fixed-route transit service, and be within one-quarter (¼) mile of adjacent commercial areas, civic uses, and parks.

B.

HDR-zoned areas and lots within the Town Center district are typically located in certain areas in the western and eastern peripheral neighborhoods surrounding the Downtown area.

(Ord. No. 894, § 2, 12-10-2024)

3.120 - Land Use Table for Residential Zoning Districts.

A.

Uses that are permitted are marked with a "P", with specific standards for the use listed in the far-right column as shown below.

B.

Uses that require conditional use approval in accordance with Section 6.300 of this Code are marked with a "C", with specific standards for the use listed in the far-right column as shown below.

C.

Uses that are not permitted are marked with a "N".

Land UseLDR-1LDR-2MDRMDR
(TC)
HDRHDR
(TC)
Specific
Standards
Residential Dwellings and Uses
Single-family
detached
P P P P N P 8.110
Duplex P P P P N P 8.110
Triplex P P P P N P 8.120
Quadplex P P P P N P 8.120
Townhouse P P P P P P 8.130
Cottage cluster P P P P N P 8.140
Multi-family
(residential only)
N N N N P P 8.150
Multi-family
(vertical mixed-use)
N N N N N N varies,
see
8.200
Manufactured home P P P P N P 8.160
Manufactured home park P P P N N N 8.160
Accessory dwelling units P P P P P P 8.170
Shared dwellings P P P P P P 8.180
Residential facility P P P P P P
Other Uses
Agricultural or
animal-based
uses
C N N N N N 5.090
Bed and breakfast inns P P P P P P 5.100
Community service uses C C C C C C
Food stand P P P P P P 5.200
Home-based child care P P P P P P
Human services C C C C C C
Recreation facilities (active) C C C C C C
Recreation facilities (passive) P P P P P P
Utility facilities
(major)
C C C C C C
Utility facilities
(minor)
P P P P P P

 

3.130 - Dimensional Standards for Residential Zoning Districts.

The following standards are outlined below based on the residential use proposed for the respective lot.

A.

Single-family detached and duplex dwellings:

Dimensional StandardLDR-1LDR-2MDRMDR
(TC)
HDRHDR
(TC)
Minimum lot size (sq. ft.):
 Single-family detached 10,000 7,000 5,000 5,000 N/A see 3.235
 Duplex 10,000 7,000 5,000 5,000 N/A see 3.235
Minimum lot width (ft.) 70 60 50 50 N/A 20
Minimum lot depth (ft.) 100 80 70 70 N/A see 3.235
Minimum lot frontage (ft.) 20 20 20 20 N/A 20
Setbacks (ft):
 Front yard 20 20 10 or 20
see note 1
10 or 20
see note 1
N/A 10 or 20
see note 1
 Side yard 10 7.5 5 5 N/A 5
 Building side (duplex) 0 0 0 0 N/A 0
 Building side (zero lot line) see note 2 see note 2 see note 2 see note 2 N/A see note 2
 Street side yard 10 10 10 10 N/A 10 or 20
see note 5
 Rear yard 15 or 20
see note 3
15 or 20
see note 3
15 or 20
see note 4
15 or 20
see note 4
N/A see 3.235
 Accessory structures see 5.010 see 5.010 see 5.010 see 5.010 N/A see 5.010
Maximum building height (ft.) 35 35 35 35 N/A 35
Density standards see 3.140 see 3.140 see 3.140 see 3.140 N/A see 3.140
Table Notes
1. Front yard setback may be reduced if driveway access is taken from rear yard and corresponding setbacks are adjusted.
2. Zero lot line dwellings shall have no side setback on one side yard or a lot and double the amount of required side yard setback on the other side yard.
3. Rear yard setbacks for duplexes are 15 feet unless driveway access is taken from a rear yard (20 feet).
4. Rear yard setback is 20 feet if driveway access is taken from a side yard.
5. Street side yard setback is 20 feet if driveway access is taken from street side yard.

 

B.

Triplex and quadplex dwellings:

Dimensional StandardLDR-1LDR-2MDRMDR
(TC)
HDRHDR
(TC)
Minimum lot size (sq. ft.) 10,000 7,000 5,000 5,000 N/A see 3.235
Minimum lot width (ft.) 70 60 50 50 N/A 20
Minimum lot depth (ft.) 100 80 70 70 N/A see 3.235
Minimum lot frontage (ft.) 20 20 20 16 N/A 20
Setbacks (ft):
 Front yard 10 10 10 10 or 20
see note 1
N/A 10 or 20
see note 1
 Side yard 10 7.5 5 5 N/A 5
 Building side 0 0 0 0 N/A 0
 Street side yard 10 10 10 10 N/A 10 or 20
see note 2
 Rear yard 10 10 10 10 N/A see 3.235
 Accessory structures see 5.010 see 5.010 see 5.010 see 5.010 N/A N/A
Maximum building height (ft.) 35 35 35 35 N/A N/A
Density standards see 3.140 see 3.140 see 3.140 see 3.140 N/A N/A
Table Notes
1. Front yard setback is 20 feet if driveway access is taken from front yard.
2. Street side yard setback is 20 feet if driveway access is taken from street side yard.

 

C.

Townhouse dwellings:

Dimensional StandardLDR-1LDR-2MDRMDR
(TC)
HDRHDR
(TC)
Minimum lot size (sq. ft.) none none none none none none
Minimum lot width (ft.) none none none none none none
Minimum lot depth (ft.) none none none none none none
Minimum lot frontage (ft.) see note 1 see note 1 see note 1 see note 1 see note 1 see note 1
Setbacks (ft):
 Front yard 10 10 10 10 or 20 see note 2 10 0
 Side yard 5 5 5 5 5 5
 Building side 0 0 0 0 0 0
 Street side yard 10 10 10 10 10 or 18, see note 3 0 or 18, see note 3
 Rear yard 10 or 0
see note 4
10 or 0
see note 4
10 or 0
see note 4
10 or 0 see note 4 10 or 0 see note 4 10 or 0,
see note 4
 Accessory structures see 5.010 see 5.010 see 5.010 see 5.010 see 5.010 see 5.010
Maximum building height (ft.) 35 35 35 35 35 35
Density standards see 3.140 see 3.140 see 3.140 see 3.140 see 3.140 see 3.140
Table Notes
1. Minimum lot frontage is 15 feet if driveway, garage, or off-street parking area is in front yard.
2. Front yard setback is 20 feet if driveway access is taken from front yard.
3. Street side yard setback is 18 feet if driveway access is taken from street side yard.
4. Rear yard setbacks are 0 feet for lots with rear alley access; 10 feet for other situations.

 

D.

Cottage cluster development and dwellings:

Dimensional StandardLDR-1LDR-2MDRMDR
(TC)
HDRHDR
(TC)
Minimum lot size (sq. ft.) 10,000 7,000 5,000 5,000 N/A N/A
Minimum lot width (ft.) 70 60 50 50 N/A N/A
Minimum lot depth (ft.) 100 80 70 70 N/A N/A
Minimum lot frontage (ft.) none none none none N/A N/A
Setbacks (ft): N/A N/A
 Front yard 10 10 10 10 N/A N/A
 Side yard 5 5 5 5 N/A N/A
 Street side yard 5 5 5 5 N/A N/A
 Rear yard 10 10 10 10 N/A N/A
 Building separation 6 6 6 6 N/A N/A
 Accessory structures see 5.010 see 5.010 see 5.010 see 5.010 N/A N/A
Maximum building height (ft.) 25 25 25 25 N/A N/A
Minimum density 4 units
per acre
4 units per acre 4 units per acre 4 units per acre N/A N/A
Maximum density N/A N/A N/A N/A N/A N/A

 

E.

Multi-family. The standards within this Subsection shall apply for multi-family residential developments or buildings that do not have a ground-floor commercial component. For vertical-based mixed-use development, dimensional standards for commercial development shall apply unless otherwise referenced within this Code.

1.

Minimum lot size. Refer to the table in the Maximum Density and Lot Size provisions of this Section for residential uses; 5,400 square feet for all other uses.

2.

Minimum lot width:

a.

Sixty feet at the front setback line.

b.

Seventy feet at the front setback line of a corner lot.

3.

Minimum lot depth:

a.

Ninety feet when there is approved street access;

b.

One hundred feet for any use with access from an alley within an easement that is part of the lot.

4.

Minimum lot frontage: Twenty feet.

5.

Minimum Density. See Section 3.140.A of this Code.

6.

Maximum Density and Lot Size. Where the number of dwelling units erected on a lot is calculated in accordance with this Section, no greater number of units shall in any event be permitted at any time unless the lot is within the Town Center Overlay District, or except as may be approved under the Planned Development District.

DwellingsMinimum Lot AreaMax Lot
Coverage
5 to 14 9,000 sq. ft. plus 2,500 sq. ft. for each unit over 3 45%
15 to 37 41,000 sq. ft. plus 2,000 sq. ft. for each unit over 15 50%
38 to 94 87,000 sq. ft. plus 1,500 sq. ft. for each unit over 38 50%
95 to 155 172,500 sq. ft. plus 1,000 sq. ft for each unit over 95 55%
Over 155 1,500 sq. ft. per unit 55%

 

7.

Setbacks.

a.

Front yard setback: Minimum of 20 feet.

b.

Side yard setback:

i.

Adjoining the HDR zoning district or a non-residential zoning district: Minimum of 5 feet.

ii.

Adjoining a different residential zoning district:

(a)

Single-story construction: One and one-half times the minimum side yard setback of the adjoining residential zoning district but not less than 10 feet.

(b)

Two-story construction: Two (2) times the minimum required side yard setback of the adjoining residential district but not less than 15 feet.

(c)

Three-story or greater construction: Three (3) times the minimum required side yard setback of the adjoining residential district but not less than 20 feet.

iii.

No side yard setback shall apply for the interior side property lines of attached dwelling on individual lots.

iv.

Ten foot side yard setback shall apply for the exterior side property line for attached dwelling on individual lot.

c.

Street side yard setback: Minimum of 10 feet unless the street side yard is used for the driveway, in which case the minimum setback shall be 18 feet to the garage.

d.

Rear yard setback:

i.

Adjoining the HDR zoning district or a non-residential zoning district:

(a)

Without an alley: Minimum of 15 feet.

(b)

With an alley that is platted either as an easement or a separate tract that is at least 20 feet in width:

(i)

Minimum of 18 feet from the nearest edge of the tract or easement to the garage door.

(ii)

Minimum of 5 feet to any other wall of the garage and all other structures as measured from the nearest edge of the tract or easement.

e.

Adjoining a different residential zoning district:

i.

Without an alley:

(a)

Single story construction: The minimum rear yard setback of the adjoining residential zoning district.

(b)

Two-story and greater construction: One and one-half times the minimum rear yard setback of the adjoining residential district but not less than 20 feet.

ii.

With an alley that is platted either as an easement or a separate tract that is at least 20 feet in width, and the alley intervenes between the dwelling or structure and the other residential zoning district: Minimum of 20 feet to the nearest edge of the tract or easement, regardless of the number of stories.

f.

Projections into setbacks. See Section 5.020 of this Code.

g.

Structures in setback areas. See Section 5.010 of this Code.

h.

Distance between buildings: See Section 8.150 of this Code.

i.

Off-street parking, garages, and carports: See Section 8.225 of this Code.

8.

Height Limitation. The maximum height of a structure shall be 35 feet.

F.

Manufactured homes. Dimensional standards are referenced in Section 8.160 of this Code for individual manufactured homes and in Section 8.165 of this Code for manufactured home parks.

G.

Accessory dwelling units. Dimensional standards are referenced in Section 8.170 of this Code.

H.

Shared dwellings. Dimensional standards are referenced in Section 8.180 of this Code.

3.140 - Residential Densities.

A.

Minimum density.

1.

Applicability. Minimum density standards shall apply to all residential development.

2.

Standard. Residential development is required to be built at eighty percent (80%) or more of the maximum number of dwelling units per net acre unless another standard is explicitly stated within this Code. For computing the minimum number of dwelling units, if the total contains a fraction, then the number shall be rounded down to the next lower whole number.

B.

Maximum density.

1.

Single-family detached. Development shall not exceed one hundred percent (100%) of the maximum number of dwelling units per net acre. For purposes of this standard, in computing the maximum number of dwelling units, if the total contains a fraction, then the number shall be rounded down to the next lower whole number.

2.

Multi-family residential. See Subsection 3.130.E of this Code.

3.

Townhouse projects.

a.

In the LDR-1 and LDR-2 zoning districts, townhouse projects are allowed four (4) times the allowed density for detached single-family dwellings.

b.

In the MDR zoning district, townhouse projects are allowed three (3) times the allowed density for detached single-family dwellings.

c.

In all other zoning districts where townhouses are permitted, the maximum density for a townhouse project shall not exceed twenty-five (25) units per net acre.

4.

Other residential development. Maximum density standards shall not apply to duplex, triplex, quadplex, cottage cluster projects, or vertical mixed-use development on a dwelling units per net acre calculation and are instead regulated by development provisions of the corresponding housing typology within Section 8.100 of this Code.

3.210 - General Purpose.

The purpose of mixed use zoning districts is to fulfill the expectations of Town Center and Main Street designations within the Metro 2040 Growth Concept by having a properly-scaled mixture of residential, commercial, and civic uses in close proximity to one another or co-located within a structure or upon a lot. These districts are to be predominantly located within the Town Center zoning overlay district.

3.211 - MU-1 - Downtown Mixed-Use.

This district is intended to provide and promote a downtown business district that serves as the core of the Town Center district and is primarily oriented towards smaller-scale commercial development along a walkable "main street" setting. Residential uses may be considered in select circumstances. Lots are typically less than 1/2 acre in size and are dependent on public rights-of-way, publicly owned property, or alleys to handle parking and loading and provide for an attractive streetscape. Specific development and design criteria for development is specified in Section 8.210 of this Code. (Previously CBD)

3.212 - MU-2 - General Mixed-Use.

This district is intended to provide a compatible mix of commercial uses and medium-density residential opportunities in certain areas across the City, including but not limited to areas adjacent to the MU-1 district. Smaller-scale high-density residential may be appropriate in select areas. This district is distinct from the MU-1 district in terms of having lots that are typically larger than a simple storefront, along with general expectations for maintaining on-site parking, landscaping, and screening. This district is distinct from the MU-3 district in terms of development scale and overall impact on surrounding areas. Specific development and design criteria for development is specified in Chapter 8 of this Code. (Previously MO/H & NC)

3.213 - MU-3 - Urban Mixed-Use.

This district is intended to provide a compatible mix of commercial uses and medium- to high-density residential opportunities in select areas of The City where vertical development has a negligible impact on surrounding areas. Residential development should include middle housing or higher density housing typologies. Commercial development should be well-integrated with residential uses situated above a ground floor retail space or immediately adjacent to promote a compact, walkable environment. Parking areas are to be located along publicly accessible streets, in areas behind structures or in consolidated or shared facilities where appropriate. Specific development and design criteria for development is specified in Section 8.230 of this Code and by adopted framework plans within the City's Urban Renewal Area.

3.220 - Land Use Table for Mixed-Use Zoning Districts.

A.

Uses that are permitted are marked with a "P", with specific standards for the use listed in the far-right column as shown below.

B.

Uses that require conditional use approval in accordance with Section 6.300 of this Code are marked with a "C", with specific standards for the use listed in the far-right column as shown below.

C.

Uses that are not permitted are marked with a "N".

Land UseMU-1MU-2MU-3Specific
Standards
Residential Dwellings and Uses
Single-family detached N P N 8.110
Duplex N P N 8.110
Triplex N P P 8.120
Quadplex N P P 8.120
Townhouse P P P 8.130
Cottage cluster N P N 8.140
Multi-family (residential units only) P P P 8.150
Multi-family (vertical mixed-use) P P P varies, see 8.200
Manufactured home N N N
Manufactured home park N N N
Accessory dwelling units N P P 8.170
Shared dwellings N C C 8.180
Residential facility N C N
Mixed-Uses
Live-Work units
(residential/commercial)
P P P
Live-Make units
(residential/industrial)
N N C
Flex units (commercial/industrial) N N C
Home-based child care P P P
Commercial Uses
General retail (up to 15,000 s.f.) P P P
General retail (above 15,000 s.f.) C C P
Offices (up to 15,000 s.f.) P P P
Offices (above 15,000 s.f.) C P P
Eating & drinking establishments
 Restaurants & bars (no drive-thru) P P P
 Restaurants & bars (with drive-thru) C P P
 Kiosks (drive-thru only) C C N 5.200
 Mobile food vendor (individually placed, in park or right-of-way) P P P 5.200
 Mobile food vendor (individually placed, on privately owned lot) P P N 5.200
Food cart pod, micro-retail pod, or outdoor market P P C
Financial institutions (no drive-thru) P P P
Financial institutions (with drive-thru) P P P
Personal services P P P
Human services C P C
Vehicular and equipment services
 Fueling stations N C N
 Repair shops N C N
 Sales or rentals C C N
Lodging facilities P P P
Bed & breakfast inns P P C
Entertainment facilities (major) N N C
Entertainment facilities (minor) P P P
Storage facilities N N N
Marijuana facilities N N N
Industrial Uses
Marijuana processors N N N
LI permitted uses
(unless otherwise listed in table)
C N C
Other Uses
Community service uses C C C
Recreation facilities (active) C C C
 Gym (up to 5,000 s.f.) P P C
 Gym (above 5,000 s.f.) C C C
Recreation facilities (passive) P P P
Utility facilities (major) C C C
Utility facilities (minor) P P P

 

(Ord. No. 894, § 2, 12-10-2024)

3.230 - Dimensional Standards for Mixed-Use Zoning Districts.

A.

Non-residential uses (including vertical mixed-use with upper floor residential units):

Dimensional StandardMU-1MU-2MU-3
Minimum lot size (sq. ft.) None None None
Minimum lot width (ft.) None None None
Minimum lot depth (ft.) None None None
Minimum lot frontage (ft.) 15 15 15
Setbacks (ft):
 when abutting a park (regardless of zoning district) 0 0 10
 when abutting a non-residential zoning district 0 0 0
 when abutting a residential zoning district 20 20 20
 for building facades over 35 ft. in height N/A N/A 15
Maximum building height (ft.) 35 35 see 3.235.D
Maximum building footprint size (sq. ft.) N/A 20,000
see note 1
60,000
footprint
Table Notes
1. There is no maximum building size applicable if the building was in existence prior to March 10, 1950.

 

B.

Residential uses (excluding vertical mixed-use with upper floor residential units):

Dimensional StandardMU-1MU-2MU-3
Minimum lot size (sq. ft.) see 3.235.A see 3.235.A see 3.235.A
Minimum lot width (ft.) 15 15 15
Minimum lot depth (ft.) see 3.235.B see 3.235.B see 3.235.B
Minimum lot frontage (ft.) 15 15 15
Minimum setbacks (ft): see 3.230.A
 Front yard:
  without alley access
   to the garage door of units with a driveway from street 20 20
   to the front façade of a residential unit 15 15
   to the front porch of a residential unit 10 10
  with alley access
   to the front façade of a residential unit 10 10
   to the front porch of a residential unit 5 5
 Side yard see 3.235.C.2 see 3.235.C.2
 Building side 0 0 0
 Street side yard 0 or 18
see note 1
0 or 18
see note 1
 Rear yard see 3.235.C.5 see 3.235.C.5
 Accessory structures see 5.010 see 5.010 see 5.010
Maximum front yard setback (ft.) N/A N/A 20
Minimum building height (ft.) N/A N/A 25
Maximum building height (ft.) 35 35 see 3.235.D
Maximum building footprint size (sq. ft.) N/A 20,000
see note 2
60,000
Density standards see 3.140 see 3.140 see 3.140
Table Notes
1. Street side yard setback is 18 feet if driveway access is taken from street side yard.
2. There is no maximum building size applicable if the building was in existence prior to March 10, 1950.

 

3.235 - Detailed Dimensional Standards.

Listed below are detailed dimensional standards referenced from the tables found in Sections 3.130 and 3.230 of this Code that require additional context or explanation.

A.

Minimum lot size for residential uses. The minimum lot size shall be based on the minimum lot width and minimum lot depth standards.

B.

Minimum lot depth for residential uses.

1.

Seventy (70) feet for residential units with a driveway from the public street or with access from an alley within a separate tract from the lot.

2.

Ninety (90) feet for residential units with access from an alley within an easement that is part of the lot.

3.

There is no minimum lot depth for lots within the area between Historic Columbia River Highway and 2nd Street extended west to its intersection with 257th Avenue from 257th Avenue to the SE Sandy Street right-of-way.

C.

Minimum setbacks.

1.

Front yard. See table in Section 3.230 of this Code.

2.

Side yard.

a.

Abutting a non-residential or HDR zoning district: Five (5) feet.

b.

Abutting all other residential zoning districts.

i.

Single-story construction: Minimum of five (5) feet from an adjoining side yard and a minimum of fifteen (15) feet from an adjoining rear yard.

ii.

Two (2) story or greater construction: Minimum of seven and one-half (7 ½) feet from an adjoining side yard and a minimum of fifteen (15) feet from an adjoining rear yard.

iii.

The minimum side yard setback from an adjoining rear yard may be reduced as provided in Subsection 3.235.C.6 of this Section.

3.

Building side. See table in Section 3.230 of this Code.

4.

Street side yard. See table in Section 3.230 of this Code.

5.

Rear yard.

a.

Abutting a non-residential zoning district:

i.

Without an alley: Ten (10) feet.

ii.

With an alley that is platted either as an easement or as a separate tract that is at least twenty (20) feet in width: Five (5) feet from the nearest edge of the alley.

b.

Abutting a residential zoning district:

i.

Without an alley:

(a)

Single-story construction: Fifteen (15) feet.

(b)

Two (2) story and greater construction: Twenty (20) feet.

(c)

The minimum rear yard setback may be reduced as provided in Subsection 3.235.C.6 of this Section.

ii.

With an alley that is platted either as an easement or as a separate tract that is at least twenty (20) feet in width: Five (5) feet from the nearest edge of the alley.

6.

Reduced setback allowed. The minimum side yard setback for residential uses adjoining a rear yard in a residential zoning district other than HDR, and the minimum rear yard setback (without an alley) adjoining a residential district, may be reduced by as much as five (5) feet based on the following:

a.

A maximum building height ceiling shall first be determined for the subject property. The maximum building height ceiling is the plane established at the maximum building height as measured at the highest point along the shared property line of the adjoining parcel from which the setback is being measured.

b.

For each one (1) foot reduction in the minimum setback, the building height ceiling shall be reduced by two (2) feet. Thus, a building that is set back the maximum five (5) feet closer to the common property line has a building height ceiling that is ten (10) feet lower than the maximum.

c.

The height of the building may not exceed the maximum building height, nor may it project above the reduced ceiling height.

D.

Maximum building height in the MU-3 zoning district.

1.

Building heights of up to fifty-five (55) feet shall be subject to a Type II site development review provided there are no other circumstances in an application requiring a higher review.

2.

Building heights between fifty-five (55) feet one (1) inch and seventy-five (75) feet shall be subject to a Type IV site development review.

3.

Exceptions to the building height limit are listed in Section 5.030 of this Code.

(Ord. No. 894, § 2, 12-10-2024)

3.310 - General Purpose.

The purpose of commercial zoning districts is to provide dedicated commercial areas in certain areas of the City that are best suited for businesses that typically do not involve an industrial process. The types of districts are distinctive based on the consumer catchment area and the scale and types of businesses that are most appropriate for the setting and its immediate surroundings.

(Ord. No. 895, § 1(Att. A), 2-25-2025)

3.311 - CC - Community Commercial.

This district is intended for the shopping needs of several neighborhoods in locations easily accessible to such neighborhoods. This zoning district is not applicable for areas or lots within the Town Center district.

3.312 - GC - General Commercial.

This district is intended for more intensive commercial uses in addition to those provided in the Community Commercial (CC) districts.

3.320 - Land Use Table for Commercial Zoning Districts.

A.

Uses that are permitted are marked with a "P", with specific standards for the use listed in the far-right column as shown below.

B.

Uses that require conditional use approval in accordance with Section 6.300 of this Code are marked with a "C", with specific standards for the use listed in the far-right column as shown below.

C.

Uses that are not permitted are marked with a "N".

Land UseCCGCSpecific
Standards
Residential Dwellings and Uses
Residential facilities P P
Other residential uses N N
Mixed-Uses
Live-Work units (residential/commercial) P N
Live-Make units (residential/industrial) C N
Flex units (commercial/industrial) C C
Commercial Uses
General retail (up to 60,000 s.f.) P P
General retail (above 60,000 s.f.) C P
Offices (up to 60,000 s.f.) P P
Offices (above 60,000 s.f.) N P
Eating & drinking establishments
 Restaurants & bars (no drive-thru) P P
 Restaurants & bars (with drive-thru) P P
 Kiosks (drive-thru only) P P 5.200
 Mobile food vendor (individually placed, in park or right-of-way) P P 5.200
 Mobile food vendor (individually placed, on privately owned lot) P P 5.200
Food cart pod, micro-retail pod, or outdoor market P P 5.200
Financial institutions (no drive-thru) P P
Financial institutions (with drive-thru) P P
Personal services P P
Human services P P
Vehicular and equipment services
 Fueling stations C P
 Repair shops N P
 Sales or rentals C C
Lodging facilities P P
Bed & breakfast inns N N
Entertainment facilities (major) C C 3.325.B
Entertainment facilities (minor) P P
Storage facilities N N
Marijuana facilities N C 3.325.A
Industrial Uses
Warehousing or distribution outlets N C
Marijuana processors N N
LI permitted uses (unless otherwise listed in table) N N
Other Uses
Agricultural or animal-based uses N P
Community service uses C C
Recreation facilities (active) C C
 Gym (up to 5,000 s.f.) P P
 Gym (above 5,000 s.f.) C C
Recreation facilities (passive) P P
Utility facilities (major) C C
Utility facilities (minor) P P

 

(Ord. No. 894, § 2, 12-10-2024; Ord. No. 895, § 1(Att. A), 2-25-2025)

3.325 - Additional Requirements.

A.

Marijuana Facilities licensed and authorized under state law, when not located within one thousand (1,000) feet of real property which is the site of a public or private school or a public park. For purposes of this subsection, "within one thousand (1,000) feet" means a straight-line measurement in a radius extending for one thousand (1,000) feet in every direction from any point on the boundary line of the real property comprising an existing public or private school or public park. This buffer shall not apply to new schools or parks located within one thousand (1,000) feet of an existing Marijuana Facility. For purposes of this Chapter, a public or private school includes a community college or other institution where students under the age of eighteen (18) receive instruction to receive academic credits that apply towards elementary, middle, or high school grades K through twelve (12) and which may also apply towards college advancement credits.

B.

Major entertainment businesses shall not be permitted within the town center boundary and shall not be located within three hundred (300) feet of a residentially zoned property.

(Ord. No. 894, § 2, 12-10-2024; Ord. No. 895, § 1(Att. A), 2-25-2025)

3.330 - Dimensional Standards for Commercial Zoning Districts.

A.

All land uses:

Dimensional StandardCCGC
Minimum lot size (sq. ft.) none none
Minimum lot width (ft.) none none
Minimum lot depth (ft.) none none
Minimum lot frontage (ft.) 20 50
Setbacks (ft):
 Front yard 20 20
 Side yard
  when abutting a non-residential zoning district 0 0
  when abutting a residential zoning district see note 1 see note 1
 Street side yard 10 5
 Rear yard
  when abutting a non-residential zoning district 0 0
  when abutting a residential zoning district see note 2 see note 2
 In cases of insufficient right-of-way see note 3 see note 3
Maximum building height (ft.) 45 45
Maximum building size (sq. ft.) 60,000 s.f. N/A
Table Notes
1. Side yard setback shall be the same side yard setback as required by the abutting zoning district.
2. Rear yard setback shall be the same rear yard setback as required by the abutting zoning district, but in no case shall be less than fifteen (15) feet.
3. The minimum front, side, or other setbacks shall be increased where such yard or setback abuts a street having right-of-way width less than the applicable City or County standard. The necessary right-of-way widths and the additional yard or setback requirements in such cases shall be based upon the Comprehensive Land Use Plan and applicable ordinances and standards.

 

3.410 - General Purpose.

The purpose of industrial zoning districts is to provide dedicated industrial areas in certain areas of the City that are best suited for businesses that involve an industrial process and that may operate in a way that is less desirable for adjacent residential uses and certain commercial uses. These areas are also often considered employment centers and may conduct activities at various hours of the day.

(Ord. No. 895, § 1(Att. A), 2-25-2025)

3.411 - IP - Industrial Park.

This district is intended for a mix of employee-intensive industries, offices, services, and retail commercial uses, which have no off-site impacts in terms of noise, odor, glare, light, vibration, smoke, dust, or other types of off-site impacts. It provides for combining parking, landscaping, and other design features which physically and visually link structures and uses within one (1) development. Offices, services, and retail commercial uses are permitted in compliance with the Troutdale Development Code.

3.412 - LI - Light Industrial.

This district is primarily intended for light, clean industries usually of a manufacturing or storage nature with little limited outdoor accessory storage. These industries usually do not require rail access and have very little process visibility. They usually create little or no air or water pollution and have few, if any, nuisance factors such as bright yard lights, continuous noise, or objectionable odors, or significant outdoor accessory storage. Professional offices and limited retail sales are permitted in compliance with the Troutdale Development Code. Uses within the LI District may be located adjacent to residential uses with appropriate adequate buffering.

3.413 - GI - General Industrial.

This district is primarily intended for manufacturing industries, large-scale fabricators, freight and trucking firms, primary metals, and lumber, etc., that usually require highway access and/or rail service. These firms usually have a high degree of process visibility and need outdoor storage of materials and products. These industries are likely to create minor air and water pollution, as well as noise and odor, and the generation of truck, shipping, or rail traffic. Non-industrial uses of a commercial nature are permitted in compliance with the Troutdale Development Code.

3.420 - Use Table for Industrial Zoning Districts.

A.

Uses that are permitted are marked with a "P", with specific standards for the use listed in the far-right column as shown below.

B.

Uses that require conditional use approval in accordance with Section 6.300 of this Code are marked with a "C", with specific standards for the use listed in the far-right column as shown below.

C.

Uses that are not permitted are marked with a "N".

D.

Gyms up to five thousand (5,000) square feet shall not be permitted in areas designated Regionally Significant Industrial Areas (RSIA) on Metro's 2040 Growth Map.

Land UseIPLIGISpecific Standards
Residential Uses
One Caretaker unit in conjunction with an existing industrial use N P P
All other residential uses N N N
Commercial Uses
Commercial sports complexes including, but not limited to, health clubs, tennis courts, aquatic centers, skating rinks, and similar facilities N C C
Convenience stores C N N 3.440.I
Eating and drinking establishments
 Restaurants and bars P N N 3.440.H
 Mobile Food Vendor operating a Food Stand, Food Cart, and Food Trailer P P P 5.200
Financial institutions C N N 3.440.D.1
Hotels/Motels/Convention Halls C C N
Marijuana facilities N C C 3.440.F
Medical and dental clinics C P P 3.440.D.1
Personal services C N N 3.440.D.1
Product sales, service, and/or display accessory to any manufacturing, fabricating, or processing use N P P 3.440.K
Professional Offices P P N 3.440.D.1
Storage facilities N C N 3.440.J
Automobile, truck, trailer, heavy equipment, recreational vehicle, boat and manufactured home services
 Card-lock fueling stations, truck stops, service stations, tire shops, and oil change facilities. N C P
 Repair and modification shops N P P
 Sales and rentals N P P 3.440.D.1
3.440.D.3
Wholesale trade/retail/discount sales and services C P P 3.440.D.1
Industrial Uses
Aggregate resource N N P 4.000
Manufacturing, milling, and processing
 Assembly and limited manufacturing C P P
 Concrete and asphalt manufacturing plants N N C
 Electronic and appliance products N C P
 Food and beverage products
  Food processing involving slaughtering,
fermentation, or fat rendering
N N C
  Beverage processing involving brewing,
distilling, roasting, or fermentation
C P P
  Other food and beverage products P P P
 Furniture and related products N P P
 Machinery and transportation equipment N C P
 Use and temporary storage in the manufacturing process of toxic or hazardous material by-products N N P
 The manufacturing or storing of toxic or hazardous materials when done in compliance with federal and state regulations N N C
 Marijuana processors N N C 3.440.G
 Metal and fabricated metal products
  Primary manufacturing or milling N N P
  Secondary manufacturing or processing N P P
 Nonmetallic mineral products N C P
 Plastic or rubber products N C P
 Printing C P P
 Textile, apparel, and leather products N C P
 Wood or paper products
  Primary manufacturing and milling N N P
  Secondary manufacturing and processing N C P
Transportation facilities
 Airports (including heliports) N P P
 Heliports (not within an airport) N C P
 Marinas C P P
 Freight and trucking firm N C P
Warehousing and Storage
 Warehouse N P P
 Accessory storage P P P
 Storage facilities N C N 3.440.J
Junk yard N N C
Marine industrial or service facilities N N P
Research, experimental, or testing
laboratories
P P P
Sanitary landfills, recycling centers, and
transfer stations.
N N C
Trade or commercial schools P P P
Other Uses
Agricultural or animal-based uses N N N
Child-care facilities in conjunction with a
permitted use or an approved conditional
use
C C C 3.440.D.1
Community service uses C C C
Public Parks, parkways, trails, and related facilities P P P
Recreation facilities (active) C C C
 Gym (up to 5,000 s.f.) P P P 3.420.D
 Gym (above 5,000 s.f.) C C C
Recreation facilities (passive) P P P
Utility facilities (major) C C P
Utility facilities (minor) P P P
Other uses similar to those listed above P/C P/C P/C

 

(Ord. No. 894, § 2, 12-10-2024; Ord. No. 895, § 1(Att. A), 2-25-2025)

3.430 - Dimensional Standards for Industrial Zoning Districts.

A.

Dimensional Standards Table for Industrial Zoning Districts.

Land UseIPLIGI
Lot Size and Coverage
 Minimum lot width 150 ft. None None
 Maximum lot coverage 60% of the site None None
Setbacks
 Front yard setback 20 ft. 20 ft. 20 ft.
 Side yard setback 15 ft. 10 ft. None
see 3.430.B.4
 Street side yard setback 15 ft. 10 ft. None
see 3.430.B.4
 Rear yard setback 10 ft. None None
see 3.430.B.4
 Setbacks for insufficient right-of-way see 3.430.B.1 see 3.430.B.1 see 3.430.B.1
 Additional setback requirements None see 3.430.B.3 see 3.430.B.3
Maximum Height of the Structure 35 ft. 45 ft.
see 3.430.B.2
see 3.430.B.2
Lot Area No minimum No minimum see 3.430.B.5

 

B.

Additional Dimensional Standards.

1.

Setbacks for insufficient rights-of-way: The minimum front, side, or other setbacks shall be increased where such yard or setback abuts a street having insufficient rights-of-way width to serve the area. The necessary right-of-way widths, and the additional yard or setback requirements in such cases, shall be determined

2.

Unless otherwise limited by the Federal Aviation Administration.

3.

Additional setback requirements: If any use in this district abuts or faces any residential zoning district, a setback of fifty (50) feet from the property line or centerline of an intervening public street, on the side abutting or facing the residential zoning district shall be required.

4.

No side or rear yard setbacks unless the property abuts a parcel of land in a more restrictive manufacturing or commercial district, in which case the requirements of the abutting zoning district shall apply.

5.

Lot Area. Division of lots or parcels are permitted as follows:

a.

Lots or parcels fifty (50) acres or smaller in size may be divided into any number of smaller lots or parcels.

b.

Undeveloped lots, parcels, or tracts larger than fifty (50) acres in size may be divided into smaller lots, parcels, or tracts so long as the resulting land division yields at least one (1) lot, parcel, or tract of at least fifty (50) acres in size. If a land division results in more than one (1) lot, parcel, or tract of fifty (50) acres or greater in size, only one (1) of those fifty (50) + acre lots, parcels, or tracts, if further divided, must yield a lot, parcel, or tract of at least fifty (50) acres in size.

c.

Developed lots or parcels fifty (50) acres or larger in size may be divided into any number of smaller lots or parcels pursuant to a master plan approved by the City so long as at least forty percent (40%) of the net area of the lot or parcel has already been developed with industrial uses or uses accessory to industrial use, and no portion of the lot has been developed, or is proposed to be developed, with uses regulated by Subsection 3.175(D) of this Code.

d.

Notwithstanding parts b. and c. of this Subsection, any lot or parcel may be divided into smaller lots or parcels or made subject to rights-of-way for the following purposes:

i.

To provide public facilities and services;

ii.

To separate a portion of a lot or parcel in order to protect a natural resource, to provide a public amenity, or to implement a remediation plan for a site identified by the Oregon Department of Environmental Quality pursuant to ORS 465.225;

iii.

To separate a portion of a lot or parcel containing a nonconforming use from the remainder of the lot or parcel in order to render the remainder more practical for a permitted use; or

iv.

To allow the creation of a lot for financing purposes when the created lot is part of a master planned development.

(Ord. No. 894, § 2, 12-10-2024; Ord. No. 895, § 1(Att. A), 2-25-2025)

3.440 - Additional Requirements.

A.

Unless otherwise provided in this Code, compliance with Chapters 8 and 11 relating to design review and landscaping is required.

B.

All lots shall have frontage or approved access to public streets, public water, and public sewer before development is allowed.

C.

Off-street parking spaces shall be provided in accordance with the requirements of Chapter 9, Off-Street Parking and Loading, of this Code.

D.

Commercial uses, as indicated in the specific standards column in TDC 3.420, are subject to the following standards:

1.

In order to ensure that certain permitted and conditional non-industrial uses are primarily intended to serve the needs of workers in the immediate area, professional offices; medical and dental clinics; banks; restaurants; and retail, wholesale, and discount sales and service shall not exceed five thousand (5,000) square feet of gross leasable area. If there are multiple businesses within these categories of uses that occur within a single building or within multiple buildings that are part of the same development project, then the cumulative gross leasable area for all these businesses shall not exceed twenty thousand (20,000) square feet.

2.

Drive-thru and drive-up service windows are not permitted in the general industrial zoning district.

E.

Development is subject to compliance with any applicable overlay zoning district standards.

F.

Marijuana Facilities licensed and authorized under state law, when not located within one thousand (1,000) feet of real property which is the site of a public or private school or a public park. For purposes of this subsection, "within one thousand (1,000) feet" means a straight-line measurement in a radius extending for one thousand (1,000) feet in every direction from any point on the boundary line of the real property comprising an existing public or private school or public park. This buffer shall not apply to new schools or parks located within one thousand (1,000) feet of an existing Marijuana Facility.

G.

Marijuana Processors licensed and authorized under state law, when not located within one thousand (1,000) feet of real property which is the site of a public or private school or a public park. For purposes of this subsection, "within one thousand (1,000) feet" means a straight-line measurement in a radius extending for one thousand (1,000) feet in every direction from any point on the boundary line of the real property comprising an existing public or private school or public park. This buffer shall not apply to new schools or parks located within one thousand (1,000) feet of an existing Marijuana Processor.

H.

Eating and drinking establishment, subject to the following requirements:

1.

The use is located within a building which houses another permitted use.

2.

No drive-through window is permitted.

3.

Inside seating area shall not exceed fifty percent (50%) of the use's gross floor area or one hundred fifty (150) square feet, whichever is the lesser.

I.

In the industrial park zoning district, convenience stores, not to exceed thirty-five hundred (3,500) square feet in size.

J.

In the light industrial zoning district, storage facilities are allowed when located within one-quarter (¼) mile of the eastern overpasses of Interstate 84 at Exit 17. For purposes of this subsection, "within one-quarter (¼) mile" means a straight line measurement in a radius extending for one thousand three hundred twenty (1,320) feet in every direction from the point positioned on the centerline of 257th Drive situated exactly in between the eastbound and westbound bridges of Interstate 84 at Exit 17.

K.

In the light industrial and general industrial zoning districts, product sales, service, and/or display accessory to any manufacturing, fabricating, or processing use are allowed provided the sales, service, and/or display area does not exceed fifteen percent (15%) of the gross floor area, or three thousand (3,000) square feet, whichever is less.

(Ord. No. 894, § 2, 12-10-2024; Ord. No. 895, § 1(Att. A), 2-25-2025)

3.510 - General Purpose.

Certain zoning districts may not be neatly defined as residential, mixed-use, commercial and industrial but require distinct designations to convey their purpose.

3.520 - OS - Open Space.

A.

Purpose. The district is intended to provide and preserve open space areas. In addition to other areas which may be so zoned by the City, this district shall apply to publicly owned parklands.

B.

Permitted Uses. The following uses and their accessory uses are permitted in the OS district.

1.

Nature and wildlife preserves.

2.

Passive recreation amenities and features.

3.

Restroom, storage, and janitorial facilities.

4.

Utility facilities (minor).

B.

Conditional Uses. The following uses and their accessory uses require conditional use approval in accordance with Section 6.300 of this Code.

1.

Active recreation amenities and features.

2.

Community service uses.

3.

Utility facilities (major).

C.

Development Criteria. The development of amenities, features, or facilities shall include, but not be limited to the following criteria:

1.

Uses within the OS-designated lot shall be compatible with adjacent land uses.

2.

Picnic grounds and parking facilities shall be equipped with trash receptacles.

3.

OS-designated lands shall be maintained by the lot owner if privately owned or by the City or other public agency by agreement if publicly owned.

4.

A conditional use located within a permitted use shall be compatible with that permitted use.