Section 706. Accessory Uses and Structures.
A. Accessory Dwelling Units (ADU).
1. In zoning districts where accessory dwelling units are a permitted use, one ADU is permitted per lot when a single-family detached primary dwelling unit is also provided, unless otherwise permitted by the zoning district.
2. An ADU is not permitted on a lot with a single-family attached dwelling unit, a duplex, triplex, or multi-family dwelling units, unless otherwise permitted by the zoning district.
3. An ADU may be either attached to or detached from the primary dwelling unit, subject to the following design guidelines:
a. An attached ADU shall be integrated into the design of the primary dwelling unit so that it appears to be part of one single family home, rather than a duplex. This guideline does not prohibit the provision of separate entry features. (P)
b. A detached ADU, when visible from adjacent streets, shall be constructed with similar and/or complementary materials, design, and color(s) as the primary dwelling unit, or as may be approved by Historic Preservation for HP zoned or designated properties. (P)
Rationale. ADUs are intended to be subordinate to the primary single-family home and should visually appear as such. An ADU which looks like a second duplex unit, or a second detached primary dwelling unit, does not meet this intent.
4. A detached ADU may be located within the required rear yard, subject to the following:
a. Setbacks.
(1) Minimum ten feet from a street side property line.
(2) Minimum three feet from an interior property line.
(3) No setback is required adjacent to a fully dedicated alley.
b. Height. Maximum 15 feet unless use permit approval for a greater height is obtained per Section 307.
5. A detached ADU not located within the required rear yard and compliant with the same setbacks required for the primary dwelling unit is subject to the same height regulations as the primary dwelling unit.
6. A detached ADU may not be located between the primary dwelling unit and the front property line unless use permit approval is obtained per Section 307.
7. An attached ADU shall comply with the same height regulations and setbacks (including permitted projections per Section 701.A.3) required for the primary dwelling unit.
8. An ADU shall comply with the lot coverage requirements applicable to the property.
9. An ADU shall not have a gross floor area which exceeds 75 percent of the gross floor area of the primary dwelling unit, and:
a. For lots up to 10,000 square feet in net area: 1,000 square feet.
b. For lots over 10,000 square feet in net area: the lesser of 3,000 square feet or ten percent of the net lot area.
For the purposes of these calculations, any garage or attached carport constructed as part of a detached ADU shall count toward the gross floor area of the ADU. Any attached shade structures shall count towards lot coverage, but not gross floor area.
10. Notwithstanding any other provision, using the ADU for an activity requiring a permit under Chapter 10, Article XVI of the City Code is prohibited.
B. Single-Family Residential Accessory Structures. The following regulations apply to accessory structures which are not accessory dwelling units, and located on lots having only single-family residential uses:
1. Accessory structures are not permitted within the required front yard. Accessory structures located behind the required front setback but between the primary dwelling unit and the front property line are not permitted unless use permit approval is obtained per Section 307.
2. Permitted Heights.
a. Maximum height of eight feet when located within ten feet of a street side property line, or 15 feet when located elsewhere within the required rear or side yard.
b. Heights in excess of 15 feet, when not located within ten feet of a street side property line, may be approved through a use permit obtained per Section 307.
c. An accessory structure not located within the required rear or side yard and compliant with the same setbacks required for the primary dwelling unit is subject to the same height regulations as the primary dwelling unit.
3. Setbacks. Accessory structures shall maintain a minimum setback of three feet adjacent to a rear or side property line, except that no setback is required adjacent to a fully dedicated alley.
C. Swimming Pools.
1. Swimming pools shall not be located in the required front yard, nor in any required landscape setback.
2. Swimming pools shall maintain a minimum setback of three feet from property lines, except that pools located on a lot designated "hillside" per Section 710 shall comply with all hillside development regulations, including setbacks. (Ord. No. G-3664, 1993; Ord. No. G-4109, 1998; Ord. No. G-6150, 2016; Ord. No. G-7160, § 29, 2023)