20.30.060 Parking.
A. Applicability. This section provides the parking regulations for a single-family dwelling unit only. For other uses refer to Chapter 20.12 BMC.
B. Number of Spaces Required. Two parking spaces shall be required for every single-family dwelling unit with the following exception:
Single-family, attached homes (including duplexes taking the option of developing as two single-family, attached units under BMC 20.32.045) shall provide one additional parking space for each bedroom over three. No more than two enclosed garage parking spaces per unit may count toward meeting parking requirement.
C. Parking Design.
1. The minimum size of a required parking space is nine feet by 18 with 22 feet of maneuvering aisle depth behind each space.
2. All required spaces shall be located on site.
3. Shared driveways with neighboring properties may be used.
4. No portion of any parking area shall be permitted within the front yard, side yard on a flanking street, vision clearance triangle or other front yard setback established on the recorded plat (e.g., a lot frontage such as a pipestem that does not meet minimum lot width and is not buildable), with the exception that parking is outright permitted in the front yard of those lots created through a cluster subdivision. Driveway crossings and tandem parking within a driveway, when allowed by other city codes, are not prohibited by this provision. Single-family homes and duplexes that are required to provide on-site maneuvering due to driveway access onto an arterial street or location near an intersection under BMC 20.12.010(D)(7) are not prohibited from providing a single backup area within the front yard or side yard on a flanking street.
5. Open parking spaces may be located within required interior side and rear yards. (See also accessory buildings, BMC 20.30.100.)
6. City rights-of-way may be utilized for maneuvering unless the right-of-way is a designated arterial or when the driveway enters the street within 50 feet of a street intersection; in which case the maneuvering area shall be provided on site.
7.
a. All required parking spaces shall be designed such that any vehicle parking in any space may enter and exit without interference or blocking any other vehicle parking in any other required space, except as allowed in subsections (C)(7)(b) and (C)(7)(c) of this section.
b. Tandem parking (two cars maximum) as allowed when enclosed within a structure.
i. Tandem parking garages shall be set back a minimum of four feet from the front face of a building.
c. Tandem parking not enclosed within a structure on lots created through the cluster subdivision pursuant to BMC Title 23.
8. A driveway for a single-family attached unit shall not exceed 20 feet in width within the front yard or side yard on a flanking street.
9. Where Required by Special Regulation in Chapter 20.00 BMC – Zoning Tables. When access is available from a city maintained alley, no vehicular access shall be taken from the street frontage except when the planning director determines that alley access is impractical or environmentally constrained.
D. Improvement Standards.
1. Driveways, maneuvering areas, and parking spaces shall be improved to a standard of no less than three inches of crushed gravel; provided, however, that the driveway shall be paved if the street being used for direct access is improved with curb and gutter.
2. Permeable pavement shall be used for hard surface ground cover areas unless infeasible, per infeasibility criteria stated in BMP T5.15 of the Ecology Manual. Projects that include less than 2,000 square feet of new or replaced impervious surface are exempt from this requirement.
3. A portion of a standard parking space may be landscaped instead of paved, provided the requirements in BMC 20.12.030(C)(4)(e) are met. [Ord. 2018-12-036 § 36; Ord. 2017-03-009 § 26; Ord. 2006-12-122; Ord. 2003-03-010; Ord. 2001-04-033 §§ 2, 6, 9; Ord. 9024, 1982].