Can I Build an ADU in Anaheim?
Data version: Q2 2026 · Last updated 2026-05-13
Buildability City Score™: C+ (Middle 58%) · Median permit time: 108 days
TL;DR. Anaheim is one of the ADU-friendlier cities in California. Buildability™ checks the Anaheim ADU ordinance, California state law, your zoning district, lot size, setbacks, parking, and owner-occupancy rules in about 20 seconds — free for your first check.
Anaheim ADU rules at a glance
Anaheim permits ADUs under CA state law — no local barriers for compliant plans. ADUs up to 1,200 sqft on single-family lots, plus JADUs up to 500 sqft. No owner-occupancy requirement for new ADUs. Impact fees waived for ADUs under 750 sqft.
Typical Anaheim lot profile
Most Anaheim single-family parcels are about 6,000–7,500 sqft with a median home price near $800,000 in a city of roughly 350K residents. Lot size drives ADU feasibility — smaller lots often still qualify for a JADU even when a detached ADU doesn't fit.
ADU vs JADU
A detached ADU is a new stand-alone structure. An attached ADU is built onto the primary home. A JADU (Junior ADU) is carved out of the existing house with a small kitchenette — usually capped around 500 sqft but easier to permit. Buildability™ checks eligibility for all three types on your specific Anaheim address.
Next steps
Enter your Anaheim address into Buildability™ for a free ADU eligibility check. If your lot qualifies, hire a licensed architect and a permit expediter who knows the Anaheim planning and building departments.
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