17.20.040 REGULATIONS AND REQUIREMENTS

A.​ Space Requirement Chart: R-14 Approx Lot Size ⅓ Acre Minimum Lot Area1 (calculated in square feet) 14,000 Lot Frontage 108’ Front Setback 30’ Side setback, street 20’ Side setback, 15’ interior Rear setback, ​ 20’ corner lot Rear setback, 30’ interior Maximum Height2 35’ Minimum Building Size3​ (calculated in square feet) 960 SF Minimum Width 20’ Building Parking Spots Required R-21​ ½ Acre 21,000 108’ 30’ 20’ 15’ 20’ 30’ 35’ 960 SF 20’ 2 R-43​ 1 Acre 43,000 108’ 30’ 20’ 15’ 20’ 30’ 35’ 960 SF 20’ 2 R-87 Duplex4,7 2 Acre 87,000 20,000 132’ 108’ 30’ 30’ 20’ 20’ 15’ 15’ 20’ 20’ 30’ 30’ 35’ 960 SF 35’ 960 SF 20’ 20’ Accessory Building 30’ 20’ 5’ 5’ 5’ 35’ 2005 External Accessory Dwelling Unit See lot size 30’ 20’ 15’ 20’ 30’ 35’ up to 1200 SF6 1.​ Lot slope requirement: All building lots shall be slope class 1, unless a hillside development permit has been issued. See table below for additional Slope Class minimum lot sizes. 2.​ Measured from the main entrance threshold to the highest point of the building roof. 3.​ Not more than one main building may be placed upon one lot or parcel of land. Living area shall be calculated excluding basement, open porches, and garages. Buildings must be attached to a permanent concrete foundation, and meet minimum uniform building code requirements. 4.​ Not more than one duplex may be placed upon one lot or parcel of land. Lots with duplexes shall be a minimum distance of three hundred fifty feet (350'), in any direction, from any other lot with a duplex. 5.​ No building permit will be required for a structure up to and including two hundred (200) square feet, unless required by state statute. 6.​ The total area of an Exterior Accessory Dwelling Unit shall be less than fifty percent (50%) of the total square footage of the primary residence, but not more than 1,200 square feet. 7.​ Duplexes need to be determined at the time of Zoning Clearance. A home cannot be converted into a duplex. B. ​ Slope Class Minimum Lot Size Requirements: Class 1​ 0-20% slope Class 2 ​ 20-23% slope Class 3​ 23-27% slope Class 4​ 27-30% slope Class 5​ 30%+ slope R-14 14,000 R-21 21,000 R-43 43,000 R-87 87,000 DUPLEX 20,000 20,000 21,000 43,000 87,000 26,000 26,000 26,000 43,000 87,000 32,000 32,000 32,000 43,000 87,000 38,000 Not Buildable Not Buildable Not Buildable Not Buildable Not Buildable 1.​ In a hillside development area, when a lot has a mix slope of slope classes 1 through 4, and the lot has seventy five percent (75%) or more of the lower slope area, the minimum lot area for the lower slope shall be allowed. 2.​ Hillside Overlay applications have more studies/requirements and can be found in Chapter 17.26.040 C. ​Lot corners will be marked with five-eighths inch (5/8") rebar (#5 rebar) that is eighteen inches (18”) to twenty four inches (24") long, capped with the surveyor's red cap containing the surveyor's name or license number driven down to ground level. D. ​Space Compliance: No space needed to meet the width, yard, area, coverage, parking, or other requirements for minimum lot size or setback may be sold or leased apart from such lot or building unless other space so complying is provided. E. ​ Trash Prohibited Outside Containers: No trash, rubbish, weeds, debris, waste products or other combustible material shall be allowed to remain on any lot outside of approved containers in any residential zone. No junk, abandoned automobiles, automobile parts, or restoration projects shall be stored or allowed to remain on any lot in any residential zone unless such objects are out of visible sight of the public. F. ​ Odorous Uses Prohibited: A use shall not be permitted which creates objectionable odor in such quantity as to be readily detectable at the boundaries of the site. G. ​Lot Grading Standards: For residential developments, a plan shall be prepared in a manner that will allow the following conditions to be met prior to, or as part of, actual building construction. If necessary, individual lot grading plans will be required prior to issuance of building permits: 1.​ A minimum fall of six inches (6") in the first ten feet (10') away from any building is required; 2.​ A maximum gradient of twenty one percent (21%) within four feet (4') of the foundation; 3.​ Usable minimum yard area of three hundred (300) square feet with a maximum slope of five percent (5%); 4.​ A minimum foundation exposure of six inches (6”) above finished grade; 5.​ Slopes of three to one (3:1) and steeper must be sodded and will be accepted only when the developer and engineer can show this to be the most feasible approach; 6.​ Driveway grades should be maintained between 0.5 percent (0.5%) and five percent (5%) when possible; 7.​ Entry walks shall not exceed 5 percent (5%); 8.​ Lots should be graded so that a minimum slope of two percent (2%) can be maintained between the sewer flow line in the street and the finished grade of the lowest floor elevation; 9.​ Minimum depth of any sewer line shall be five feet (5'). H. ​Legal Nonconforming Status: Vacant lots which do not meet the current frontage requirement, but can provide division and deed history showing they met historic requirements, may be granted "legal nonconforming" status and receive building permits. Such documentation is to be provided to the development coordinator who shall provide documentation to the planning and zoning commission, mayor and/or city council if needed. I. ​ Orientation: Any residence constructed on any buildable parcel must be accessed from a “public street”, as defined in Ordinance 17.08.020 “STREET, PUBLIC”. Said residence shall have the property entrance located to face the public street to which its address was assigned. J. ​ Residential lots that do not have a sidewalk shall install sidewalks as part of any new primary residential construction if the location is indicated on the adopted sidewalk map. All new development that occurs that is not currently on the sidewalk map will be evaluated for sidewalk needs by the Planning Commission. (Ord. 2026-5, 2026: Ord. 2026-1, 2026: Ord. 2025-7, 2025: Ord. 2018-8, 2018: 2018-6, 2018: Ord. 2012-2, 2012: Ord. 2008-3, 2008: Ord. 2004-6, 2004: Ord. 2004-4, 2004: Ord. 2004-2, 2004: Ord. 2003-2, 2003: Ord. 2002-6 § 1, 2002: Ord. 2002-5 § 1, 2002: Ord. 2002-2 § 3, 2002: Ord. 2000-16 §§ 1, 2: Ord. 2000-9 § 1: Ord. 99-02-18-01 § 2)