Current state law exempts a Los Angeles ADU of 750 sq ft or less from impact fees and limits any impact fee on a larger unit to a proportional amount. City Planning's memo exempts ADUs and junior ADUs from Park and Affordable Housing Linkage fees. LAUSD lists a published school rate for ADUs over 500 sq ft.
Last verified 2026-10-18. Rules change; the Los Angeles Department of Building and Safety (LADBS) has the final word (311 or (213) 473-3231).
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City Planning's ZA Memo 143 exempts ADUs and junior ADUs from Park Fees and the Affordable Housing Linkage Fee. It names the Residential Development Fee and Dwelling Unit Construction Tax among impact fees affected by ADU size. Its older under-750 wording predates the current state-law threshold shown above.
ZA Memo 143 Rev. 1, Section III.DLAUSD's Impact Fee Program lists the residential rate shown above, effective August 11, 2026. The City's memo says LAUSD school fees apply to ADUs larger than 500 sq ft. Confirm the lot's district before using that published rate for a fee estimate.
LAUSD Impact Fee Program, Current Impact Fee RatesAsk the Los Angeles Department of Building and Safety (LADBS) before you rely on these.
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Government Code section 66311.5(c)(1) exempts an ADU with 750 sq ft of interior livable space or less. City Planning's ZA Memo 143 uses older under-750 wording, so use the current state threshold and confirm the City's bill.
City Planning's ZA Memo 143, Section III.D, exempts ADUs and junior ADUs from Park Fees and the Affordable Housing Linkage Fee. It names the Residential Development Fee and Dwelling Unit Construction Tax as separate impact fees affected by size.
City Planning's ZA Memo 143 says LAUSD school fees apply to ADUs larger than 500 sq ft. The LAUSD Impact Fee Program publishes the residential rate shown above; use it for a fee estimate only after confirming the school district serving the address.
Neither. It is a screening from public records, not professional advice, and not a survey, soils report, appraisal, loan offer or permit; every number is an estimate. A licensed designer confirms the final plan, and your city or county gives final approval.