§ 17.46.150. Driveway Design, Widths, and Clearances

The width of each driveway shall comply with the minimum requirements of this Section and also provide a minimum of one foot of additional clearance on each side of the driveway to a vertical obstruction exceeding one-half foot in height.

A.

Residential uses.  

1.

Minimum driveway width. The minimum width of a driveway serving a residential use, other than in a project utilizing the multi-family development standards of Section 17.22.060 (RM District General Development Standards), shall comply with Table 4-10 (Minimum Driveway Width - Residential Uses).

TABLE 4-10 - MINIMUM DRIVEWAY WIDTH - RESIDENTIAL USES
Number of Spaces Served	Minimum Driveway Width (feet)
6 or fewer parking spaces	8
7 - 25 parking spaces	10
26 or more parking spaces	10 (one way drive)
	18 (two way drive)

 

2.

Maximum driveway width. The maximum width for a driveway serving a residential use in the RS and RM-12 zoning districts shall be as identified in Table 4-11 (Maximum Driveway Width - Residential Uses), below.

TABLE 4-11 - MAXIMUM DRIVEWAY WIDTH - RESIDENTIAL USES
Size and Location of Garage	Maximum Driveway Width (feet)
One-car garage located at or near the front setback	10
Two-car garage located at or near the front setback	20
Garages located to the rear of a lot	10

 

3.

Number of driveways. The maximum number of driveways serving a single-family use shall be one. This maximum number may be increased to two for approved circular driveways.

B.

Nonresidential uses. A driveway serving a nonresidential use (including a mixed-use project) shall comply with the following requirements.

TABLE 4-12 - MINIMUM DRIVEWAY WIDTH - NONRESIDENTIAL USES
Number of Spaces Served	Minimum Driveway Width (feet)
14 or fewer parking spaces	12
15 or more parking spaces	12 (one way drive)
20 (two way drive)

 

C.

Multi-family uses. Serving a multi-family use in projects utilizing multi-family development standards of Section 17.22.060 (RM District General Development Standards).

1.

Driveways shall have the following widths at a minimum plus at least one-half foot additional clearance on any side where they pass a vertical obstruction exceeding curb height.

TABLE 4-13 - MINIMUM DRIVEWAY WIDTH - MULTI-FAMILY PROJECTS
Number of Spaces Served	Minimum Driveway Width (feet)
25 or fewer spaces	One driveway - 10 feet wide
26 or more parking spaces	Two one-way driveways - 10 feet wide each
	One two-way driveway - 12 feet wide
(See Section 17.46.180 (Driveway Location and Frequency for Projects Utilizing Multi-Family Development Standards)

 

2.

Driveway approaches shall be at least 12 feet wide at the curb and shall taper to driveway width at the front property line.

D.

Circular driveways. Circular driveways shall be approved by the Zoning Administrator and shall be subject to the following standards:

1.

Allowed only in the RS and RM-12 districts.

2.

Only lots with a street frontage of 90 feet or more are eligible for circular driveways.

3.

On lots with more than one street frontage, the circular driveway may only be located on the street frontage which is 90 feet or greater.

4.

The circular driveway shall not have a width greater than 15 feet.

5.

The minimum distance between driveways on the same lot shall be 20 feet.

6.

The Department of Public Works and the Department of Transportation shall review and approve the proposed curb cuts, the distance between the curb cuts, and the potential traffic impacts that could result from the installation of the circular driveway.

7.

The circular driveway shall be set back a minimum of 25 feet measured perpendicular from the property line to the farthest distance of the inside edge of the circular driveway.

(Ord. 7169 § 16, 2009; Ord. 7160 § 34, 2009; Ord. 7038, § 13, 2006; Ord. 7009 § 19, 2005)