Winthrop City Zoning Code
CHAPTER 17
20 RESIDENTIAL DISTRICTS
§ 17.20.010 Residential I district (R-I).
A.
Policy. The residential I district is designed for established and developed residential neighborhoods in the town, which consist almost exclusively of single-unit dwellings. The intent of this district is to establish and preserve these residential neighborhoods for single-unit residential dwellings without undue restrictions which would eliminate or limit a full range of home prices, styles and sizes. Single-unit residential uses and accessory dwelling units should be allowed, along with such accessory uses and home occupations as are consistent with single-unit residential uses. The minimum lot size in the residential I district shall be five thousand (5,000) square feet except that smaller existing platted lots may be developed with single-unit residences as nonconforming lots.
B.
Uses Permitted. In a residential I district those uses shall be permitted as set forth in the table of permitted land uses in Chapter 17.16.
C.
Lot Size, Allowable Densities, Lot Coverage, Height and Setbacks. Lot sizes, allowable densities, lot coverage, height and setback requirements shall be as set forth in Section 17.20.050.
D.
Signs. In a residential I district the following signs only shall be permitted:
1.
One name plate or home occupation sign for each dwelling unit, which sign shall not be more than two square feet in area;
2.
One temporary sign advertising the sale, lease or rental of the property or of a lot or tract of the property on which it is located, which sign shall be not more than six square feet in area. No signs in a residential I district shall be illuminated.
(Ord. 790 § 1 (Exh. A), 2025; Ord. 714 § 1 (Exh. A)(part), 2019; Ord. 699 § 1 (Exh. A)(part), 2018; Ord. 372 § 5(1), 1990)
§ 17.20.020 Residential II district (R-II).
A.
Policy. This district is designed as a mixed single-unit and two-unit residence area with larger minimum lot sizes than in the residential I district. Multi-unit dwellings are allowed by planned development permit to retain oversight over higher density uses and to promote clustering and retention of open space areas consistent with the more spacious nature of this district. This district would allow for planned residential complexes in new neighborhoods which could include a mixture of single-unit residences and multi-unit residences combined with larger yard and open space areas, by planned development permit. Minimum lot size for either a single-unit or two-unit dwelling is ten thousand (10,000) square feet, with a minimum of twenty thousand (20,000) square feet required for a planned development permit. A single-unit home may be permitted to have up to two attached or detached ADUs on a ten thousand (10,000) square foot lot.
B.
Uses Permitted. In a residential II district those uses shall be permitted as set forth in the table of permitted land uses in Chapter 17.16.
C.
Lot Size, Allowable Densities, Lot Coverage, Height and Setbacks. Lot sizes, allowable densities, lot coverage, height and setback requirements in a residential II district shall be as set forth in Section 17.20.050.
D.
Signs. In a residential II district the following signs only shall be permitted:
1.
One name plate or home occupation sign for each dwelling unit, which sign shall not be more than two square feet in area;
2.
One temporary sign advertising the sale, lease or rental of the property on which it is located, which sign shall be not more than six square feet in area;
3.
One temporary sign advertising the sale of a tract of land or subdivision or of lots within a subdivision or homes or condominiums within a development, which sign shall be not more than thirty-six (36) square feet in area and shall be back at least ten (10) feet from the property line, and shall be located so as not to create a visual barrier from streets or roads;
4.
One sign attached to a multi-unit dwelling or at the entrance to a residential subdivision stating the name of the apartment complex, subdivision or development, which shall not exceed ten (10) square feet in area and shall not be self-illuminated;
5.
No signs in a residential II district shall be self-illuminated. Only indirect, shaded lighting on a sign shall be allowed.
(Ord. 790 § 1 (Exh. A), 2025; Ord. 714 § 1 (Exh. A)(part), 2019; Ord. 699 § 1 (Exh. A)(part), 2018; Ord. 489 § 5(A, B), 1998; Ord. 372 § 5(2), 1990)
§ 17.20.030 Residential III district (R-III).
A.
Policy. The residential III district is designed to allow for high density, multi-unit residential development and residential-tourist accommodations, including time-share condominiums, without restricting single-unit dwelling units, and is intended for locations where a full range of utility services are available and where traffic generated by the development does not significantly impact lower density residential areas. Mandatory development standards for single-unit dwelling units (including condominiums) are provided to protect against adverse aesthetic and environmental consequences of such high-density developments.
B.
Uses Permitted. In a residential III district those uses shall be permitted as set forth in the table of permitted land uses in Chapter 17.16.
C.
Lot Size, Allowable Densities, Lot Coverage, Height and Setbacks. Lot sizes, allowable densities, lot coverage, height and setback requirements in a residential III district shall be as set forth in Section 17.20.050.
D.
Signs. In a residential III district the following signs only shall be permitted:
1.
One name plate or home occupation sign for each dwelling unit, which sign shall not be more than two square feet in area;
2.
One temporary sign advertising the sale, lease or rental of the property on which it is located, which sign shall be not more than six square feet in area;
3.
One temporary sign advertising the sale of a tract of land or subdivision or of lots within a subdivision or homes or condominiums within a development, which sign shall be not more than thirty-six (36) square feet in area and shall be back at least ten (10) feet from the property line, and shall be located so as not to create a visual barrier from streets or roads;
4.
One sign attached to a single-unit dwelling or at the entrance to a residential subdivision stating the name of the apartment complex, subdivision or development, which shall not exceed ten (10) square feet in area and shall not be self-illuminated;
5.
No signs in a residential III district shall be self-illuminated. Only indirect, shaded lighting on a sign shall be allowed.
E.
Development Standards.
1.
In the residential III district, multifamily dwellings including condominiums and time-share condominiums shall comply with the following development standards:
a.
Landscape plans shall be implemented immediately upon completion of construction, which will provide plantings which, either separately or combined with wood fencing or earthen berms, provide visual screening of parking areas, trash areas and other service areas of the development, and break up the visual impact of the development from public roads and neighboring properties, and which will eliminate and prevent the occurrence of noxious weeds. Landscaping must be maintained to assure viability of plantings; underground or other timed outdoor water systems may be required by the administrator for water conservation.
b.
Storm water shall be channeled and disposed of by dispersal through a grassy area of sufficient size for the anticipated amount of storm water runoff, or by release into a properly designed dump area with filtration system or devices installed (including oil/water separator if called for by the size of development and the amount of traffic to be generated thereby, and by the size of the paved areas and other impervious surfaces) or other acceptable method to assure no degradation of the surface or groundwaters.
c.
An ownership and maintenance program will be implemented for roads and common areas if the development is to be sold in units including condominium ownership, to assure a long-range maintenance program for such areas (such as a homeowner's association, coop, or condominium ownership program).
d.
Dust control measures shall be implemented to provide assurance of continual dust control during construction and upon occupation of the development. All roads and parking areas shall be paved or similarly surfaced to provide long-term dust control.
e.
Dog control measures shall be mandatory in all multifamily dwelling projects, including either dog prohibition, or mandatory leash laws preferably with kennels provided. Such measures shall be reduced to writing and recorded, or entered on the face or a recorded plat or site plan map.
f.
All multifamily dwellings in the residential III district shall comply with Chapter 15.08, using standards and regulations applicable to the business III district.
g.
Compliance with the provisions and procedure of the State Environmental Policy Act and local regulations thereunder shall precede any multifamily development.
2.
The administrator shall review the measures proposed for compliance with these development standards and shall approve or conditionally approve a building permit application to assure compliance with these standards.
(Ord. 790 § 1 (Exh. A), 2025; Ord. 714 § 1 (Exh. A)(part), 2019; Ord. 489 § 5(A–D), 1998; Ord. 372 § 5(3), 1990)
§ 17.20.035 Tourist/residential district.
A.
Policy. This district, like the R-II, is designed as a mixed single-unit and duplex residence area with larger minimum lot sizes than in the residential I district. Single-unit uses are allowed by planned development permit to retain oversight over the higher density uses and to promote clustering and retention of open space areas consistent with the more spacious nature of this district. This district would allow for planned residential complexes in new neighborhoods which could include a mixture of single-unit residences and multi-unit buildings combined with larger yard and open space areas, by planned development permit. Minimum lot size for either a single-unit dwelling or duplex is ten thousand (10,000) square feet, with a minimum of twenty thousand (20,000) square feet required for a planned development permit.
B.
Uses Permitted. In a tourist/residential district those uses shall be permitted as set forth in the table of permitted land uses in Chapter 17.16.
C.
Lot Size, Allowable Densities, Lot Coverage, Height and Setbacks. Lot sizes, allowable densities, lot coverage, height and setback requirements in a tourist/residential district shall be as set forth in Section 17.20.050.
D.
Signs. In a tourist/residential district the following signs only shall be permitted and are subject to Westernization review:
1.
One name plate or home occupation sign for each dwelling unit, which sign shall not be more than two square feet in area;
2.
One temporary sign advertising the sale, lease or rental of the property or of a lot or tract of the property on which it is located, which sign shall not be more than six square feet in area;
3.
One temporary sign advertising the sale of a tract of land or subdivision or of lots within a subdivision or homes or condominiums within a development, which sign shall be not more than thirty-six (36) square feet in area and shall be back at least ten (10) feet from the property line, and shall be located so as not to create a visual barrier from streets or roads;
4.
No signs in a tourist/residential district shall be self-illuminated. Only indirect, shaded lighting on a sign shall be allowed;
5.
One sign attached to a multi-unit dwelling or at the entrance to a residential development stating the name of the apartment or condominium complex, subdivision or development, which shall not exceed ten (10) square feet in area and shall not be self-illuminated.
(Ord. 790 § 1 (Exh. A), 2025; Ord. 714 § 1 (Exh. A)(part), 2019; Ord. 512 § 4, 2000)
§ 17.20.040 Planned residential district (PR).
A.
Policy. The planned residential (PR) district is designed to encourage a cohesive approach to residential development of single-unit, two-unit, and multi-unit housing through use of the planned development process. This district is suitable for large parcels of land that are not adjacent to existing arterial or collector routes. Development within the PR district should foster a clustered pattern of development which retains natural open space, consolidates road access, and provides well-defined pedestrian access.
B.
Allowed Uses. In the PR district those uses shall be allowed as set forth in the table of allowed uses in Chapter 17.16. All uses shall comply with the development standards set forth in this section.
C.
Allowable Densities, Height and Setbacks. Minimum lot size, allowable densities, height and setback requirements in the PR district shall be as set forth in Table 17.20.050. Minimum lot size and setbacks shall be established through the planned development process. Density requirements shall still apply and may be averaged across the entire property. Parking requirements may be met in shared/common parking areas.
D.
Signs. In the PR district the following signs shall be allowed:
1.
One residential name plate or home occupation sign for each dwelling unit, which shall be not more than two square feet in area and shall not be illuminated;
2.
One temporary sign advertising the sale, lease or rental of the property on which it is located, which sign shall be not more than six square feet in area;
3.
One temporary sign advertising the sale of a tract of land or subdivision or of lots within a subdivision or homes or condominiums within a development, which sign shall be not more than thirty-six (36) square feet in area and shall be back at least ten (10) feet from the property line, and shall be located so as not to create a visual barrier from streets or roads;
4.
One sign attached to a multi-unit dwelling or at the entrance to a residential subdivision stating the name of the apartment complex, subdivision or development, which shall not exceed ten (10) square feet in area and shall not be self-illuminated;
5.
No signs in a planned residential district shall be self-illuminated. Only indirect, shaded lighting on a sign shall be allowed.
E.
Stormwater. All stormwater shall be collected and disposed of on site. Subdivision or planned developments shall require implementation of a stormwater management plan that meets applicable standards.
F.
Development Standards. Applicants for uses within the PR district shall ensure compliance with the following development standards:
1.
Open Space. Applicant shall provide for at least twenty-five (25) percent of the property being developed to remain in an open space designation, or at least fifteen (15) percent of the property if a minimum of fifty (50) percent of the housing units within the PD are permanently affordable housing. To the extent possible, open space should remain undisturbed and be designated in a manner that provides continuity across the landscape. Open space shall be preserved and/or restored, landscaped, and maintained with suitable native vegetation in a manner that helps preserve habitat functions and values. Open space areas may be used to achieve stormwater collection, treatment and dispersal requirements; provided, that stormwater shall be dispersed throughout the site and shall infiltrate into the ground as close to the natural conditions as possible.
2.
Clustered Development. To the extent possible, buildings shall be clustered to facilitate ease of access, retention of interconnected open spaces. Consideration should be given to maintaining design continuity with adjoining properties.
3.
Site Design. Site design shall be sensitive to the topography, existing native vegetation, critical areas, unique and sensitive resources, and other natural features. Buildings shall be sited, designed, and/or screened to minimize visual impacts along ridgelines.
4.
Landscaping. Landscaping shall be incorporated into site design where needed to provide screening and create a comfortable human scale environment. Landscaping should consist of low maintenance, low chemical-dependent, and native/drought-tolerant plantings.
5.
Lighting. External lighting shall be shielded so as to minimize glare beyond individual property boundaries and above the roofline of buildings.
6.
Parking. Parking shall be required in accord with Section 17.12.040. To achieve efficient land use, parking may be consolidated so as to serve multiple uses and/or properties. Such joint parking arrangements shall comply with Section 17.12.040(B).
7.
Pedestrian Circulation. Developments shall ensure safe, convenient, and pleasant pedestrian circulation, connecting all on-site activities to adjacent pedestrian routes and street rights-of-way.
8.
Recreation Access. Public access to recreational opportunities in the area is encouraged. Site development should incorporate pedestrian trails and other amenities that facilitate connections to recreation opportunities within the zoning district.
(Ord. 790 § 1 (Exh. A), 2025; Ord. 714 § 1 (Exh. A)(part), 2019)
§ 17.20.050 Lot size, coverage, densities, setback and height.
Table 17.20.050 RESIDENTIAL DISTRICTS | ||||
|---|---|---|---|---|
R-I | R-II and TR | R-III | PR | |
Minimum lot size | 5,000 sq. ft. | 10,000 sq. ft., 20,000 sq. ft. for PD | 5,000 sq. ft. for single-unit du, 20,000 sq. ft. single-unit du | Determined by PD Without a PD 10,000 sq. ft. |
Maximum density, without PD permit | 1 du/5,000 sq. ft.4 | 1 du/5,000 sq. ft.1, 4 | 1 du/3,000 sq. ft.4 | 1 du/10,000 sq. ft.1, 4 |
Maximum density, with PD permit | N/A | 1 du/5,000 sq. ft.1, 4 | 3,000 sq. ft. for first du, 1 du/1,600 sq. ft. thereafter | 1 du/5,000 sq. ft.1, 4 |
Maximum lot coverage2 | 60% | 60% | 70% | 70% |
Front yard setback2 | 25 ft. | 25 ft. | 25 ft. | 25 ft.5 |
Side yard setback2 | 5 ft.3 | 10 ft. | 5 ft.3 | 5 ft.3 |
Rear yard setback, main building | 10 ft. | 10 ft. | 10 ft. | 10 ft.5 |
Rear yard setback, detached building | 10 ft. | 10 ft. | 10 ft. | 10 ft.5 |
Height | 30 ft. | 30 ft. | 30 ft. | 30 ft. |
Notes: |
|---|
du = dwelling unit |
1 Single-unit residences require ten thousand (10,000) square feet; one dwelling unit per five thousand (5,000) square feet for duplexes and multi-unit housing. For the purpose of calculating density, an ADU is considered to be part of a single-unit residence. |
2 Applies to all structures. Front yard setback may be reduced to ten (10) feet if parking is developed and utilized in side or rear yard areas. See Section 17.12.040(A). |
3 Ten (10) feet on corner lot, street side. |
4 When calculating minimum lot size, density and setbacks for an individual parcel, the area of such parcel contained within any trail, pathway or walkway easement or right-of-way that is open for public use and in any public or private road, street or access easement, shall not be used to reduce the overall lot size or increase setbacks. The area encompassed in such easements or rights-of-way shall be included in lot size and density calculations. Setbacks shall be measured from property lines as they existed prior to trail, pathway or walkway donation. |
5 Minimum lot size, individual lot coverage, and setbacks may be established through the planned development process. Setbacks may be reduced to five feet on each side; provided, that parking requirements are met. Density requirements shall still apply and may be averaged across the entire property. |
(Ord. 790 § 1 (Exh. A), 2025; Ord. 714 § 1 (Exh. A)(part), 2019; Ord. 699 § 1 (Exh. A)(part), 2018; Ord. 643 § 6, 2012; Ord. 489 § 5(E), 1998; Ord. 459 § 4, 1996; Ord. 372 Table 3, 1990; Formerly 17.20.040)
