54 GENERAL REGULATIONS
Table 17.54.050.1. Residential Site Development Standards Table | ||||||||
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KEY: Residential Low-Density (RL-20, RL-40) Residential Medium-Density (RM-6, RM-10) Manufactured Home Park (MH-P) Multifamily Residential (MR) Downtown – Mixed Use (D-MU) Urban Transition (UT) Planned Unit Development (PUD) | ||||||||
RL-40 | RL-20 | RM-10 | RM-6 | MR | D-MU (11) | UT | PUD | |
Minimum Dimensions/Sizes (6): | ||||||||
Single-Family Lot Area (if served by city water and sewer) | 40,000 s.f. | 20,000 s.f. | 10,000 s.f. (12,500 s.f. for corner lots) | 6,000 s.f. (7,500 s.f. for corner lots) | 3,000 s.f. | 3,000 s.f. | 1 acre (4) | Underlying zone |
Single-Family Lot Area (if not served by city sewer) | 1 acre (8) | 1 acre | 10 acres | 1 acre | 10 acres | N/A | 1 acre (4) | Underlying zone |
Townhouse/Rowhouse Lot Size | 1,800 s.f. Not to exceed 9 units/acre | 1,800 | 1,800 | Underlying zone | ||||
Duplex Lot Area per Dwelling Unit | 4,000 | 2,000 | Underlying zone | |||||
Multifamily Lot Area per Dwelling Unit | 2,000 | 2,000 | Underlying zone | |||||
Lot Width (at street frontage) | 45' | 45' | 40' | 30' | 30' | 30' | 100' | 30' |
Lot Width at Street Frontage Townhouse/Rowhouse | 22.5' | |||||||
Lot Depth | 90' | 90' | 80' | 80' | 80' | 100' | 50' | |
Front Yard Setback (2)(3)(7) | 25' | 25' | 20' | 20' | 15' | Commercial and Multifamily - 5' Single-family - 20' | 25' | Underlying zone |
Front Yard Setback Townhouse/Rowhouse | 15' building 10' stoop/porch 20' garage | 15' building 10' stoop/porch 20' garage | 15' building 10' stoop/porch 20' garage | |||||
Rear Yard Setback (1)(2)(5) | 20' | 20' | 8' | 8' | 10' | Commercial and Multifamily - 5' Single-family - 8' | 25' | Underlying zone |
Side Yard Setback (1)(2)(3)(5) | 10' | 10' | 5' | 5' | 5' | Commercial and Multifamily - 5' Single-family - 5' | 25' | Underlying zone |
Street Side Yard Setback – Corner Lot (2)(9) | 15' | 15' | 15' | 15' | 15' | Commercial and Multifamily - 15' Single-family - 15' | 25' | Underlying zone |
Open Space | 10% of gross area | |||||||
Maximum Dimensions/Sizes: | ||||||||
Lot Coverage (12) | 50% | 50% | 50% | 40% | 60% | 60% | 50% on a one-acre home-site | 60% |
Building Height (5) | 40' | 40' | 40' | 40' | 40' | 40' (10) | 40' | Underlying zone |
Notes: |
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(1) Setbacks, when adjacent to a private road or driveway easement, are established from the inner edges of the road or driveway easement and are the same as noted above, except when serving four or less parcels the setbacks are measured from the inner edges and shall be the same in the table noted above. |
(2) Minor Encroachments or Projections Allowed. Minor features of a structure, such as eaves, chimneys, fire escapes, bay windows no more than 12 feet long and which cantilever beyond the foundation of the structure, and uncovered decks or balconies, may encroach, extend, or project into a required setback up to two feet in residential districts. However, they may not be less than within 3 feet of a lot line when a setback is required. Unroofed wheelchair access ramps, landings, and railings compliant with federal Americans with Disabilities Act (ADA)[1], as well as unroofed stoops (entrance stairways), may project into the setback. Attached mechanical equipment such as heat pumps, air conditioners, emergency generators and water pumps are allowed to project into the side or rear setback only. |
A covered porch, covered patio, deck 30 inches or higher, pergola, and any other roofed structure shall be considered a part of a building in the determination of the size of the yard or lot coverage. |
(3) Side yard setbacks are not applicable to townhouses or rowhouses. |
(4) The UT district has agricultural "quarter/quarter zoning" which permits one residential dwelling on a one-acre minimum lot for each one-sixteenth of a section of land. |
(5) Setbacks and maximum building heights for certain accessory buildings are reduced, as detailed in WRMC § 17.54.055B.3. |
(6) Exceptions to the setback requirements may be considered in accordance with WRMC § 17.54.020, when applicable to a group of multiple lots. A setback exception pertaining only to an individual lot is to be considered through the variance process of Chapter 17.69 WRMC. |
(7) Minimum setbacks for separate garages or accessory buildings ordinarily appurtenant to the conduct of farming, including barns and storage shed for large farm machinery, shall not be less than 60 feet from the front lot line. |
(8) The minimum lot size in the RL-40 zoning district remains at 40,000 square feet when a lot to be divided is greater than 500 feet from city sewer, and served with city water. |
(9) Not applicable to a garage door and/or carport opening which must maintain the front yard setback. |
(10) New commercial and/or multifamily buildings within the downtown – mixed use district over 40 feet in height shall be reviewed via the conditional use permit process set forth in Chapter 17.66 WRMC. |
(11) The standards of WRMC § 17.49.080 apply. |
(12) Maximum lot coverage does not apply to townhouses/rowhouses. |
Table 17.54.050.2. Manufactured Home Park Minimum Setbacks Table | ||||||
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Minimum setback from the property lines of individual in-park spaces | Minimum setback from the boundary of the manufactured home park | |||||
Front and Flanking Street Yard | Side Yard | Rear Yard | Side Yard | Rear Yard | Right-of-Way | |
Manufactured homes | 5' | 5' | 5' | 10' | 10' | 20' |
Patio covers, decks, landings, awnings | 5' | 5' | 5' | 5' | 5' | 20' |
Carports | 5' | 5' | 5' | 5' | 5' | 20' |
At least 10 feet of separation shall be maintained between mobile or manufactured homes (including additions/porches, pop-outs, etc.). All accessory structures shall maintain a five-foot separation from the mobile or manufactured home unless it is permanently attached, and shall be set back at least five feet from all lot lines of the specific space within which it is placed. |
Table 17.54.050.3. Nonresidential Site Development Standards Table | |||||||
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KEY: City Parks District (CP) Commercial General (CG) Neighborhood Commercial (CN) Commercial Limited (CL) Commercial – Light Industrial (C-LI) Downtown – Mixed Use (D-MU) Light Industrial (LI) | |||||||
Parks | Commercial | Mixed Use | Industrial | ||||
CP | CG | CN | CL | C-LI | D-MU | LI | |
Minimum Dimensions/Sizes | |||||||
Minimum front and flanking yard setback (1) | 15' | 15' | 20' | 20' | 15' | 5' | 25' |
Minimum rear yard setback (1) | 8' | 0' | 0' | 0' | 5' | 0' | |
Minimum side yard setback (1) | 5' (25' for corner lot) | 0' | 0' | 0' | 5' | 10' | |
Minimum lot area | N/A | N/A | N/A | N/A | N/A | N/A | 10,000 s.f. |
Minimum width of street frontage | N/A | 40' | 40' | 40' | 40' | N/A | N/A |
Minimum lot depth | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Maximum Dimensions/Sizes | |||||||
Maximum building height | 30' | 35' | 35' | 35' | 45' | 40' (2) | 45' |
Maximum lot coverage (%) | None | None | None | None | None | None | None |
Maximum impervious surface (% of lot area) | None | 90% | 90% | 90% | 90% | 90% | 95% |
Notes: |
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(1) Transition requirements may apply to office, commercial, industrial, and other nonresidential buildings. See WRMC § 17.54.330. |
(2) New commercial and/or multifamily buildings within the downtown – mixed use district over 40 feet in height shall be reviewed via the conditional use permit process set forth in Chapter 17.66 WRMC. |
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Table 17.54.430.1 Mini-Storage Multi-Story Building Window Area | |||
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Facade | Minimum Window Area as a Percentage of Façade(A), (B) | Each 2nd and Higher Story: | |
Minimum Window Area (square feet) | Minimum Number of Windows | ||
1. Right-of-way | 12% | 60 | 3(C) |
2. Side | 12% | 48 | 2(C) |
3. Remaining side or rear | 5% | 16 | 1 |
Footnotes: | |
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(A) | As seen in elevation view. |
(B) | Distributed up the facade so that more than the ground story facade has window area. |
(C) | One of the windows shall terminate a hallway that ends at the facade or that intersects a corridor parallel with and along the façade. |
(D) | Where window area is designed for use as window signage, which WRMC Title 19 regulates, such as by fronting a shadow box, it does not count towards minimum window area. |