17.10.020

Accessory dwelling units

• Exterior lighting compliance

  Where feasible, the exterior lighting must comply with Section 17.56.030 (outdoor lighting for residential uses) of this Code.

• Fire sprinklers not required if not required for primary

  ADUs or JADUs shall not be required to provide fire sprinklers if they are not required for the primary residence.

• GradingGrading (cut & fill)Reshaping land by removing earth (cut) or adding it (fill), often capped by volume. limits

  ADUs or JADUs shall comply with the grading standards described in Section 17.76.040 (grading permit), provided that any grading permit for an ADU or JADU shall be processed ministerially.

• Minimum bathrooms1 bathrooms

  The ADU shall include at least one full bathroom and shall not include more than one kitchen.

• Maximum floor area attached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. with 2+ bedrooms1,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  One thousand square feet if the ADU contains more than one bedroom

• Maximum floor area attached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. as percentage of primary50 pct

  Fifty percent of the primary residence's main building floor area (including any existing primary residence garage area)

• Maximum floor area attached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage.850 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Eight hundred fifty square feet for an ADU with one bedroom

• Maximum floor area detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. with 2+ bedrooms1,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  or 1,000 square feet if the ADU contains more than one bedroom

• Maximum floor area detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage.850 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  The total area of floor space for a detached ADU shall not exceed 850 square feet, or 1,000 square feet if the ADU contains more than one bedroom.

• Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. attached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage.25 ft

  An attached ADU shall not exceed the height limitation applicable to the primary dwelling or 25 feet, whichever is lower, for an accessory dwelling unit that is attached to a primary dwelling.

• Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage.16 ft

  A detached ADU shall not exceed 16 feet in height

• Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. near transit18 ft

  If the ADU is within a one-half mile walking distance of a major transit stop or high-quality transit corridor, as those terms are defined in Public Resources Code § 21155, the maximum height shall not exceed 18 feet.

• Maximum kitchens1 kitchens

  shall not include more than one kitchen

• Required parking spaces1 spaces

  A minimum of one parking space, which may be enclosed, shall be provided for the ADU and shall meet the minimum dimensions stated in section 17.02.030.

• Minimum side and rear setbackSetbackThe distance a building must be held back from a lot line.4 ft

  a setback of no more than four feet from the side and rear lot lines shall be required for an ADU that is not converted from an existing structure or a new structure constructed in the same location and to the same dimensions as an existing structure

• Same ownership required

  The primary dwelling unit and the ADU shall remain under the same ownership. The ADU shall not be sold separately from the primary dwelling unit, except when the ADU or the primary dwelling was built or developed by a qualified nonprofit corporation and meets all the requirements of Government Code § 66341, including any amendments or successor statutes thereto.

• Parking exemption near transit

  No parking spaces are required for an ADU if any of the following apply: i. The ADU is located within one-half mile walking distance of a public transit stop; ii. The ADU is located within an architecturally and historically significant structure; iii. The ADU is part of the proposed or existing primary residence; iv. When on-street parking permits are required but not offered to the occupant of the ADU; v. When there is a car share designated pick-up or drop-off location within one block of the ADU.

• Roof decks prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance.

  Roof decks shall not be permitted on a detached ADU.

• Separate utility connections required

  ADUs shall obtain separate connections for all utilities, including water and sewer service.

• Short-term rentalShort-term rentalA dwelling let to guests for brief stays — the zoning category behind Airbnb rules. prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance.

  An ADU or JADU shall not be used as a short-term rental, in accordance with Section 17.02.026 (short-term rentals and advertisement of short-term rentals).

• Trailer or RV prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance. as ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage.

  A trailer or any other recreational vehicle may not be maintained as an ADU or JADU on a residential lot.

• Use limited to dwelling

  An ADU or JADU shall be used solely as a dwelling. ADUs and JADUs shall not be utilized as ancillary or accessory uses, including, but not limited to, events, storage, home office, gym/workout studio, and greenhouse.