Check your inbox for our complete ADU guide covering permits, costs, timelines, ADU types, CalHFA grants, and 2026 LADBS regulations. While you wait, review the latest ADU law changes, explore rental income potential, and see which ADU type fits your property.
Check your inbox for the complete Los Angeles ADU guide PDF. (Now)
Explore 5 ADU types, cost ranges, and which fits your property and goals. (Today)
Use the guide's zoning checklist to assess your lot's ADU potential. (This week)
Get a free site assessment with lot feasibility review. (At your convenience)
Interior livable space measurement (excludes walls). 15-day completeness review. 60-day auto-approval. Fees prohibited under 750 sf.
Owner-occupancy required only if JADU shares bathroom with main home. All JADUs must rent 30+ days minimum.
Coastal ADU permits decided in 60 days. No Coastal Commission appeal allowed. Removes biggest barrier for coastal properties.
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Yes. California ADU laws require the property owner to authorize construction. Owner-occupancy requirements have been reduced — only JADUs sharing a bathroom require owner-occupancy.
Under SB 543, cities must complete review within 60 days of a complete application. Completeness review takes 15 days. Total: approximately 75 days from submission to approval.
Yes, but hillside lots require additional engineering (geotechnical reports, retaining walls, caissons). This adds $50K–$150K to project cost depending on slope and soil conditions.
A JADU (Junior ADU) is up to 500 sf and converted from existing space within the main home. A standard ADU can be up to 1,200 sf and can be a new structure. JADUs are faster and cheaper to build.
The ADU itself is reassessed at current value and added to your tax basis, but your main home's assessed value is not reassessed. Prop 19 allows transferring your tax basis if you're over 55.
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