44 SPECIFIC USE DEVELOPMENT STANDARDS
Table 16.44.180 – Ministerial ADU Review | |
|---|---|
Applications Subject to "Planning Review" (See HMC § 16.44.180(D)) | Applications Subject to "Building Permit Only" Review (See HMC § 16.44.180(E)) |
Any application for an ADU that is not eligible for "building permit only" review. | • One ADU within the space of an existing or proposed single-family dwelling or an accessory structure. The ADU may expand the physical dimensions of an existing accessory structure by not more than 150 square feet to allow for ingress and egress. The space must have exterior access from the proposed or existing single-family dwelling. The rear and side yard setbacks must be sufficient for fire and safety. |
• A JADU that meets the requirements of Article 3 (commencing with Section 66333) of Chapter 13 of Division 1 of Title 7 of the Government Code. | |
• One detached, new construction ADU, so long as the ADU does not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling unit, a total floor area of 800 square feet, and a height of 16 or 18 feet as provided in California Government Code Section 66321(b)(4)(A) through (b)(4)(C), as applicable. | |
• Multiple ADUs within the portions of an existing multifamily dwelling, in spaces not used as living space. Examples include conversion of storage rooms, boiler rooms, passageways, attics, basements, and garages. Each ADU must comply with state building standards for dwellings. The number of ADUs that may be created within a multifamily dwelling is equal to 25 percent of the number of existing multifamily dwelling units, or one ADU, whichever is greater. | |
• Not more than eight detached ADUs on a lot with an existing multifamily dwelling; however, the number of ADUs cannot exceed the number of existing units on the lot. The ADUs are subject to a 16- or 18-foot height limit as provided in California Government Code Section 66321(b)(4)(A) through (b)(4)(C), as applicable, and must maintain at least a four-foot rear and side yard setback, unless the existing multi-family dwelling has a rear or side setback of less than four feet. | |
• Not more than two detached ADUs on a lot with a proposed multifamily dwelling. The ADUs are subject to a 16- or 18-foot height limit as provided in Government Code Section 66321(b)(4)(A) through (b)(4)(C), as applicable, and must maintain at least a four-foot rear and side yard setback. | |