Auburn City Zoning Code

18.35 Special

Purpose Zones

18.35.010 Purpose.

This chapter lists the land uses that may be allowed within the residential office, residential office-hospital, institutional, and public use zones established by ACC 18.02.070 (Establishment of zones), determines the type of land use approval required for each use, and provides basic standards for site layout and building size. (Ord. 6894 § 1 (Exh. B), 2022; Ord. 6434 § 1, 2012.)

18.35.020 Intent of special purpose zones.

A. General. This section describes the intent for each of the city’s special purpose zones. These intent statements may be used to guide the interpretation of the regulations associated with each zone.

B. Repealed by Ord. 6959.

C. P-1 Public Use Zone. The P-1 public use zone is intended to provide for the appropriate location and development of public uses that serve the cultural, educational, recreational, and public service needs of the community. A broader list of public and quasi-public uses may be allowed to develop.

D. I Institutional Zone. The I institutional zone is intended to provide an area wherein educational and theological uses in a campus-like setting are permitted, which may not be permitted outright within other zones. This district is not intended to include those smaller or singular public uses which are consistent with and permitted in the P-1 public use zone.

E. OS Open Space Zone. The OS open space zone is intended to provide for land uses that tend to be managed in a largely undeveloped character, including passive parks, watersheds, natural and urban conservancy shoreline areas, significant wildlife habitats, large storm water detention ponds or floodplain ponds, utility corridors with public access, and areas with significant development restrictions. Park lands included in the open space zone tend to be predominantly passive in character and with relatively fewer developed facilities than parks included in the institutional zone; provided, that accessory uses such as supportive parking, boardwalks, kiosks, interpretive centers, trails, restrooms, and public access points are allowed. Private sites containing critical areas or shorelines may be included. (Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6677 § 2, 2018; Ord. 6434 § 1, 2012.)

18.35.030 Uses.

A. General Permit Requirements. Table 18.35.030 identifies the uses of land allowed in each special purpose zone and the planning permit required to establish each use.

B. Requirements for Certain Specific Land Uses. Where the last column (Standards for Specific Land Uses) in Table 18.35.030 includes a section number, the referenced section determines other requirements and standards applicable to the use regardless of whether it is permitted outright or requires an administrative or conditional use permit.

Permitted, Administrative, Conditional and Prohibited Uses by Zone

P – Permitted

C – Conditional

A – Administrative

X – Prohibited

LAND USE

Zoning Designations

Standards for Specific Land Uses

P-1

Permitted, Administrative, Conditional and Prohibited Uses by Zone				P – Permitted C – Conditional A – Administrative X – Prohibited
LAND USE	Zoning Designations			Standards for Specific Land Uses
LAND USE	P-1	I	OS	Standards for Specific Land Uses
MARIJUANA-RELATED BUSINESSES
Marijuana processor	X	X	X
Marijuana producer	X	X 18.	X
Marijuana researcher	X	X	X
Marijuana retailer	X	X	X
Marijuana transporter business	X	X	X
PUBLIC
Animal shelter, public	P	X	X
Government facilities; this excludes offices and related uses that are permitted outright	P	P	C
Municipal parks and playgrounds	P	P	P
RECREATION, EDUCATION AND PUBLIC ASSEMBLY
Campgrounds	X	P	P
Recreational vehicle parks, private	X	P	X
Cemetery, public	P	A	X
Cemetery, private	X	A	X
College, university, public	A	A	X
Commercial recreation facility – Indoor	X	P	X
Commercial recreation facility – Outdoor	X	A	C	ACC 18.57.025(A)
Conference/convention facility	X	A	X
Library, museum	P	P	A
Meeting facility, public or private	P	P	A
Private school – specialized education/training (for profit)	X	P	X
Public schools (K-12) and related facilities	P	X	X
Religious institutions, lot size less than one acre	X	P	X
Religious institutions, lot size more than one acre	X	P	X
Studio – Art, dance, martial arts, music, etc.	X	X	X
RESIDENTIAL
Middle housing subject to the provisions in Chapter 18.25 ACC (2 to 6 units)	X	A¹	X
Home occupation	X	P	P	Chapter 18.60 ACC
Live/work, work/live unit	X	A	X
Apartments (7 or more units)	X	A²	X
One single-unit detached dwelling	X	X	P⁴
Nursing home, assisted living facility	X	P	X
Senior housing	X	A	X
RETAIL
Marijuana cooperative	X	X	X
Restaurant, cafe, coffee shop, excluding drive-through facilities	P	A	X
SERVICES
Banking and related financial institutions, excluding drive-through facilities³	X	X	X
Daycare, including mini daycare, daycare center, preschools or nursery schools	X	P	A
Home-based daycare	X	P	P
Medical services – Clinic or urgent care³	X	X	X
Mortuary, funeral home, crematorium	X	X	X
Professional offices	X	A	A
Personal service shops	X	X	X
Pharmacies	X	X	X
TRANSPORTATION, COMMUNICATIONS AND INFRASTRUCTURE
Utility facilities, substations, utility transmission or distribution line	X	X	A	See ACC 18.02.040(E)
Wireless communications facility (WCF) (See ACC 18.04.912(W))	*	*	*	*See ACC 18.31.100 for use regulations and zoning development standards.
Eligible facilities request (EFR) (Wireless communications facility) (See ACC 18.04.912(H))	P	P	P
Small wireless facilities (ACC 18.04.912(Q))	P	P	P
Emergency wireless communications facility (EWCF)	X	P	X	See ACC 18.04.912 and 18.31.100
OTHER USES THAT ARE NOT LISTED
Other uses may be permitted by the planning director or designee if the use is determined to be consistent with the intent of the zone and is of the same general character of the uses permitted	P	P	P

1Minimum lot area not applicable; duplexes must meet other development standards of the I zone.

2Minimum lot area not applicable; apartments must meet other development standards of the I zone, dwellings; provided, that 2,400 square feet of lot area is provided for each dwelling unit.

3Permitted within a public college or university as an amenity or service provided to students: A stand-alone bank or medical services/clinic is not permitted.

4One single-unit detached dwelling unit per existing legal lot. No residential subdivisions permitted in the open space zone.

(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6799 § 9 (Exh. I), 2020; Ord. 6716 § 1 (Exh. A), 2019; Ord. 6677 § 3, 2018; Ord. 6642 § 11, 2017; Ord. 6434 § 1, 2012.)

18.35.040 Development standards.

Hereafter, no use shall be conducted and no building, structure and appurtenance shall be erected, relocated, remodeled, reconstructed, altered or enlarged unless in compliance with the requirements in Table 18.35.040 (P-1, I, OS Zone Development Standards) and in compliance with the provisions of this title, and then only after securing all permits and approvals required hereby. These standards may be modified through either an administrative variance or variance, subject to the procedures of Chapter 18.70 ACC.

Development Standards	Requirement by Zones
Development Standards	P-1 Public Use	I Institutional	OS Open Space
Minimum lot area	None	6,000 sf	None
Minimum lot width, depth	None	60 ft, 80 ft	None
Maximum lot coverage	None	35 percent	5 percent
Maximum impervious area	NA	NA	20 percent⁴
Setbacks	Minimum setbacks required for primary structures. See ACC 18.31.070 for exceptions to these requirements.
Front	20 ft	20 ft	20 ft
Side – Interior	5 ft⁴	5 ft	5 ft
Side – Corner	10 ft	10 ft	10 ft
Rear	25 ft	25 ft	25 ft
Accessory structure(s)	NA	See note ²
Height limit	Maximum allowable height of structures. See ACC 18.31.030 (Height limitations – Exceptions) for height limit exceptions.
Maximum height	45 ft	45 ft³	35 ft
Fences and hedges	See Chapter 18.31 ACC
Landscaping	See Chapter 18.50 ACC
Parking	See Chapter 18.52 ACC
Signs	See Chapter 18.56 ACC
Lighting	See Chapter 18.55 ACC
Nonconforming structures, land and uses	See Chapter 18.54 ACC

1A 25-foot setback is required when adjacent to a residential zone.

2Accessory structures shall meet all the required setbacks of the zone with the exception that the rear yard setback may be reduced to five feet; provided, that any structure with a vehicle entrance from a street (public or private) or public alley shall be set back a minimum of 20 feet.

3Maximum building height for residential dwellings: 35 feet. Accessory buildings to residential dwellings: 24 feet.

4Maximum impervious area includes all hard surfaces per ACC 13.48.010(L).

(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6677 § 4, 2018; Ord. 6434 § 1, 2012.)

18.35.050 Additional development standards for both the RO and RO-H zones.

Repealed by Ord. 6959. (Ord. 6894 § 1 (Exh. B), 2022; Ord. 6434 § 1, 2012.)

Auburn City Zoning Code

18.35 Special

Purpose Zones

18.35.010 Purpose.

18.35.020 Intent of special purpose zones.

B. Repealed by Ord. 6959.

18.35.030 Uses.

A. General Permit Requirements. Table 18.35.030 identifies the uses of land allowed in each special purpose zone and the planning permit required to establish each use.

Permitted, Administrative, Conditional and Prohibited Uses by Zone

P – Permitted

C – Conditional

A – Administrative

X – Prohibited

LAND USE

Zoning Designations

Standards for Specific Land Uses

P-1

Permitted, Administrative, Conditional and Prohibited Uses by Zone				P – Permitted C – Conditional A – Administrative X – Prohibited
LAND USE	Zoning Designations			Standards for Specific Land Uses
LAND USE	P-1	I	OS	Standards for Specific Land Uses
MARIJUANA-RELATED BUSINESSES
Marijuana processor	X	X	X
Marijuana producer	X	X 18.	X
Marijuana researcher	X	X	X
Marijuana retailer	X	X	X
Marijuana transporter business	X	X	X
PUBLIC
Animal shelter, public	P	X	X
Government facilities; this excludes offices and related uses that are permitted outright	P	P	C
Municipal parks and playgrounds	P	P	P
RECREATION, EDUCATION AND PUBLIC ASSEMBLY
Campgrounds	X	P	P
Recreational vehicle parks, private	X	P	X
Cemetery, public	P	A	X
Cemetery, private	X	A	X
College, university, public	A	A	X
Commercial recreation facility – Indoor	X	P	X
Commercial recreation facility – Outdoor	X	A	C	ACC 18.57.025(A)
Conference/convention facility	X	A	X
Library, museum	P	P	A
Meeting facility, public or private	P	P	A
Private school – specialized education/training (for profit)	X	P	X
Public schools (K-12) and related facilities	P	X	X
Religious institutions, lot size less than one acre	X	P	X
Religious institutions, lot size more than one acre	X	P	X
Studio – Art, dance, martial arts, music, etc.	X	X	X
RESIDENTIAL
Middle housing subject to the provisions in Chapter 18.25 ACC (2 to 6 units)	X	A¹	X
Home occupation	X	P	P	Chapter 18.60 ACC
Live/work, work/live unit	X	A	X
Apartments (7 or more units)	X	A²	X
One single-unit detached dwelling	X	X	P⁴
Nursing home, assisted living facility	X	P	X
Senior housing	X	A	X
RETAIL
Marijuana cooperative	X	X	X
Restaurant, cafe, coffee shop, excluding drive-through facilities	P	A	X
SERVICES
Banking and related financial institutions, excluding drive-through facilities³	X	X	X
Daycare, including mini daycare, daycare center, preschools or nursery schools	X	P	A
Home-based daycare	X	P	P
Medical services – Clinic or urgent care³	X	X	X
Mortuary, funeral home, crematorium	X	X	X
Professional offices	X	A	A
Personal service shops	X	X	X
Pharmacies	X	X	X
TRANSPORTATION, COMMUNICATIONS AND INFRASTRUCTURE
Utility facilities, substations, utility transmission or distribution line	X	X	A	See ACC 18.02.040(E)
Wireless communications facility (WCF) (See ACC 18.04.912(W))	*	*	*	*See ACC 18.31.100 for use regulations and zoning development standards.
Eligible facilities request (EFR) (Wireless communications facility) (See ACC 18.04.912(H))	P	P	P
Small wireless facilities (ACC 18.04.912(Q))	P	P	P
Emergency wireless communications facility (EWCF)	X	P	X	See ACC 18.04.912 and 18.31.100
OTHER USES THAT ARE NOT LISTED
Other uses may be permitted by the planning director or designee if the use is determined to be consistent with the intent of the zone and is of the same general character of the uses permitted	P	P	P

1Minimum lot area not applicable; duplexes must meet other development standards of the I zone.

2Minimum lot area not applicable; apartments must meet other development standards of the I zone, dwellings; provided, that 2,400 square feet of lot area is provided for each dwelling unit.

3Permitted within a public college or university as an amenity or service provided to students: A stand-alone bank or medical services/clinic is not permitted.

4One single-unit detached dwelling unit per existing legal lot. No residential subdivisions permitted in the open space zone.

(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6799 § 9 (Exh. I), 2020; Ord. 6716 § 1 (Exh. A), 2019; Ord. 6677 § 3, 2018; Ord. 6642 § 11, 2017; Ord. 6434 § 1, 2012.)

18.35.040 Development standards.

Development Standards	Requirement by Zones
Development Standards	P-1 Public Use	I Institutional	OS Open Space
Minimum lot area	None	6,000 sf	None
Minimum lot width, depth	None	60 ft, 80 ft	None
Maximum lot coverage	None	35 percent	5 percent
Maximum impervious area	NA	NA	20 percent⁴
Setbacks	Minimum setbacks required for primary structures. See ACC 18.31.070 for exceptions to these requirements.
Front	20 ft	20 ft	20 ft
Side – Interior	5 ft⁴	5 ft	5 ft
Side – Corner	10 ft	10 ft	10 ft
Rear	25 ft	25 ft	25 ft
Accessory structure(s)	NA	See note ²
Height limit	Maximum allowable height of structures. See ACC 18.31.030 (Height limitations – Exceptions) for height limit exceptions.
Maximum height	45 ft	45 ft³	35 ft
Fences and hedges	See Chapter 18.31 ACC
Landscaping	See Chapter 18.50 ACC
Parking	See Chapter 18.52 ACC
Signs	See Chapter 18.56 ACC
Lighting	See Chapter 18.55 ACC
Nonconforming structures, land and uses	See Chapter 18.54 ACC

1A 25-foot setback is required when adjacent to a residential zone.

3Maximum building height for residential dwellings: 35 feet. Accessory buildings to residential dwellings: 24 feet.

4Maximum impervious area includes all hard surfaces per ACC 13.48.010(L).

(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6677 § 4, 2018; Ord. 6434 § 1, 2012.)

18.35.050 Additional development standards for both the RO and RO-H zones.

Repealed by Ord. 6959. (Ord. 6894 § 1 (Exh. B), 2022; Ord. 6434 § 1, 2012.)

Auburn City Zoning Code

18.35 Special

Purpose Zones

18.35.010 Purpose.

18.35.020 Intent of special purpose zones.

B. Repealed by Ord. 6959.

18.35.030 Uses.

A. General Permit Requirements. Table 18.35.030 identifies the uses of land allowed in each special purpose zone and the planning permit required to establish each use.

Permitted, Administrative, Conditional and Prohibited Uses by Zone

P – Permitted

C – Conditional

A – Administrative

X – Prohibited

LAND USE

Zoning Designations

Standards for Specific Land Uses

P-1

Permitted, Administrative, Conditional and Prohibited Uses by Zone				P – Permitted C – Conditional A – Administrative X – Prohibited
LAND USE	Zoning Designations			Standards for Specific Land Uses
LAND USE	P-1	I	OS	Standards for Specific Land Uses
MARIJUANA-RELATED BUSINESSES
Marijuana processor	X	X	X
Marijuana producer	X	X 18.	X
Marijuana researcher	X	X	X
Marijuana retailer	X	X	X
Marijuana transporter business	X	X	X
PUBLIC
Animal shelter, public	P	X	X
Government facilities; this excludes offices and related uses that are permitted outright	P	P	C
Municipal parks and playgrounds	P	P	P
RECREATION, EDUCATION AND PUBLIC ASSEMBLY
Campgrounds	X	P	P
Recreational vehicle parks, private	X	P	X
Cemetery, public	P	A	X
Cemetery, private	X	A	X
College, university, public	A	A	X
Commercial recreation facility – Indoor	X	P	X
Commercial recreation facility – Outdoor	X	A	C	ACC 18.57.025(A)
Conference/convention facility	X	A	X
Library, museum	P	P	A
Meeting facility, public or private	P	P	A
Private school – specialized education/training (for profit)	X	P	X
Public schools (K-12) and related facilities	P	X	X
Religious institutions, lot size less than one acre	X	P	X
Religious institutions, lot size more than one acre	X	P	X
Studio – Art, dance, martial arts, music, etc.	X	X	X
RESIDENTIAL
Middle housing subject to the provisions in Chapter 18.25 ACC (2 to 6 units)	X	A¹	X
Home occupation	X	P	P	Chapter 18.60 ACC
Live/work, work/live unit	X	A	X
Apartments (7 or more units)	X	A²	X
One single-unit detached dwelling	X	X	P⁴
Nursing home, assisted living facility	X	P	X
Senior housing	X	A	X
RETAIL
Marijuana cooperative	X	X	X
Restaurant, cafe, coffee shop, excluding drive-through facilities	P	A	X
SERVICES
Banking and related financial institutions, excluding drive-through facilities³	X	X	X
Daycare, including mini daycare, daycare center, preschools or nursery schools	X	P	A
Home-based daycare	X	P	P
Medical services – Clinic or urgent care³	X	X	X
Mortuary, funeral home, crematorium	X	X	X
Professional offices	X	A	A
Personal service shops	X	X	X
Pharmacies	X	X	X
TRANSPORTATION, COMMUNICATIONS AND INFRASTRUCTURE
Utility facilities, substations, utility transmission or distribution line	X	X	A	See ACC 18.02.040(E)
Wireless communications facility (WCF) (See ACC 18.04.912(W))	*	*	*	*See ACC 18.31.100 for use regulations and zoning development standards.
Eligible facilities request (EFR) (Wireless communications facility) (See ACC 18.04.912(H))	P	P	P
Small wireless facilities (ACC 18.04.912(Q))	P	P	P
Emergency wireless communications facility (EWCF)	X	P	X	See ACC 18.04.912 and 18.31.100
OTHER USES THAT ARE NOT LISTED
Other uses may be permitted by the planning director or designee if the use is determined to be consistent with the intent of the zone and is of the same general character of the uses permitted	P	P	P

1Minimum lot area not applicable; duplexes must meet other development standards of the I zone.

2Minimum lot area not applicable; apartments must meet other development standards of the I zone, dwellings; provided, that 2,400 square feet of lot area is provided for each dwelling unit.

3Permitted within a public college or university as an amenity or service provided to students: A stand-alone bank or medical services/clinic is not permitted.

4One single-unit detached dwelling unit per existing legal lot. No residential subdivisions permitted in the open space zone.

(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6799 § 9 (Exh. I), 2020; Ord. 6716 § 1 (Exh. A), 2019; Ord. 6677 § 3, 2018; Ord. 6642 § 11, 2017; Ord. 6434 § 1, 2012.)

18.35.040 Development standards.

Development Standards	Requirement by Zones
Development Standards	P-1 Public Use	I Institutional	OS Open Space
Minimum lot area	None	6,000 sf	None
Minimum lot width, depth	None	60 ft, 80 ft	None
Maximum lot coverage	None	35 percent	5 percent
Maximum impervious area	NA	NA	20 percent⁴
Setbacks	Minimum setbacks required for primary structures. See ACC 18.31.070 for exceptions to these requirements.
Front	20 ft	20 ft	20 ft
Side – Interior	5 ft⁴	5 ft	5 ft
Side – Corner	10 ft	10 ft	10 ft
Rear	25 ft	25 ft	25 ft
Accessory structure(s)	NA	See note ²
Height limit	Maximum allowable height of structures. See ACC 18.31.030 (Height limitations – Exceptions) for height limit exceptions.
Maximum height	45 ft	45 ft³	35 ft
Fences and hedges	See Chapter 18.31 ACC
Landscaping	See Chapter 18.50 ACC
Parking	See Chapter 18.52 ACC
Signs	See Chapter 18.56 ACC
Lighting	See Chapter 18.55 ACC
Nonconforming structures, land and uses	See Chapter 18.54 ACC

1A 25-foot setback is required when adjacent to a residential zone.

3Maximum building height for residential dwellings: 35 feet. Accessory buildings to residential dwellings: 24 feet.

4Maximum impervious area includes all hard surfaces per ACC 13.48.010(L).

(Ord. 6959 § 1 (Exh. A), 2024; Ord. 6894 § 1 (Exh. B), 2022; Ord. 6677 § 4, 2018; Ord. 6434 § 1, 2012.)

18.35.050 Additional development standards for both the RO and RO-H zones.

Repealed by Ord. 6959. (Ord. 6894 § 1 (Exh. B), 2022; Ord. 6434 § 1, 2012.)