Standards | Details |
|---|---|
Zones allowed | R-1, R-2, R-3, R-BA, NCRO-2, SCRO-1, PAOZ-1, PAOZ-2 and PD |
Lot Restrictions | Lot must have existing or proposed single-family, duplex, or multiple-family dwelling |
Minimum Lot Size | None |
Min/Max ADU Size | No Minimum |
ADU Building Height | Attached ADUs: Detached ADUs:
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Setbacks | Front: Dependent on underlying zoning district (state-exempt ADUs may be located anywhere in the front setback area) No setback required for conversion of an existing legally permitted structure with nonconforming setbacks, or for a new ADU built in the same location/dimensions as such a structure Detached ADUs may have limited encroachments into setbacks for overhanging architectural features (eaves, gutters), open/uncovered stairs, ramps and landings, and supported or cantilevered decks |
Parking Requirements | JADUs & ADUs in R-1, R-2, R-3, NCRO-2, SCRO-1, PAOZ-1, or PAOZ-2 Districts: No parking required
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Owner Occupancy | ADUs: None JADUs: Owner must occupy primary dwelling or JADU |
Sample fees from recent permits | Detached ADU (Permit issued July 2022, 640 square feet, $180,000 valuation): Total permit fee $2,300 |
Other requirements | Number of ADUs allowed single-family lots: Any combination of (1) one ADU within proposed or existing space of the SFD, (2) one newly constructed detached ADU (≤800 sf), and (3) one JADU. Total dwelling units on lots created via SB 9 (urban lot split or two-unit development) capped at 4. Number of ADUs allowed Multifamily lots: ADUs within existing non-livable space (up to 25% of existing units), PLUS up to 8 detached ADUs on lots with existing multifamily (not to exceed the number of existing primary units), OR up to 2 detached ADUs on lots with proposed multifamily. The lot on which the ADU is located shall have a legal means of access to the public right-of-way California Building Code compliance required for fire safety, including sprinklering if the main dwelling is sprinklered or requires sprinklering due to other proposed work ADUs are subject to the underlying district’s landscaping requirements; state-exempt ADUs are exempt from landscaping requirements Utility connections required; separate meters not required Tree Removal Permit required if trees are to be removed Additional development standards apply per district requirements, including FAR and lot coverage, except that state-exempt ADUs are excluded from FAR and lot coverage calculations Short term rentals prohibited in ADUs and JADUs |
Process | Building permit review required. Making an appointment to meet with a planner in the initial stages of the project is highly recommended. No design review is required but the separate ADU permit previously required in the R-BA zone has been eliminated; only a building permit is required, and it is processed ministerially within 60 days of a complete application. |
Exceptions | State-exempt ADUs are exempt from FAR, lot coverage, parking, and landscaping requirements. State-exempt ADUs include: (1) ADUs created within the proposed or existing space of an SFD or accessory structure; (2) newly constructed detached ADUs up to 800 sf; (3) JADUs; (4) ADUs created within existing non-livable space of a multifamily dwelling; (5) multiple detached ADUs on multifamily lots. |