California ADU rules - popularity rank #8
Anaheim ADU rules are curated from the municipal code, including detached ADUs, conversions, JADUs, setbacks, height, building separation, and entrance details. Larger answers still depend on parcel placement and code review.
Based on 5 curated rule paths from official sources. Last reviewed June 2026. Use this page as the rule starting point, then run the address check to see which path matches your lot.
Popularity rank
#8 California ADU market
Rule paths
5 curated ADU rule sets
Detached ADU
800 sq ft state-floor path; up to 1,200 sq ft larger path
Minimum unit size
150 sq ft
Side / rear setbacks
4 ft
Primary source
Anaheim Municipal Code
Rule snapshot
These sections mirror the questions homeowners search for: size, setbacks, parking, permit workflow, and which ADU type is available. The rows stay source-backed and avoid turning a city rule into parcel approval.
Planning a garage conversion ADU?
Read the California garage conversion guide, then run the address check to match the city baseline to the actual lot.
Estimating ADU permit cost?
Permit cost depends on the fee stack, ADU type, size, waivers, and plan-check path for this city.
Anaheim's ADU page is built from the municipal code, which makes the official source trail direct and reviewable.
Anaheim allows several single-family combinations when official criteria are met, while keeping size paths distinct.
The code source carries dimensional standards; the checklist helps homeowners understand the later submittal step.
Why this is a starting point
Competitor rule pages often stop at a city summary. The useful next step is matching those rules to an actual lot, because zoning, parcel geometry, overlays, and selected ADU type decide what a homeowner should do next.
Anaheim's page is built from Municipal Code Section 18.38.015, with source-backed fields for allowed ADUs, size, setbacks, height, separation, and entrance rules.
The detached ADU path notes that a single-family lot can combine existing or proposed space, new construction, and JADU paths when official criteria are met.
The curated rows distinguish the 800 sq ft state-floor path from larger detached ADU paths up to 1,200 sq ft, which helps avoid flattening distinct standards.
Free ADU Check
The city page gets the search visitor in the door. The ADU Check turns the visit into a property-specific report path.
Start free address checkThe check matches the typed address to jurisdiction, zoning, parcel context, and the closest stored ADU rule path.
Detached, attached, conversion, garage conversion, and JADU paths are handled separately when the city source supports them.
The report keeps official rule text separate from parcel-specific caveats, so a homeowner can see the rule and the remaining risk.
Official links
These are outbound official sources from HomeFeasible's reviewed ADU rule collection. They are here for verification and trust; the address check is the next step for a property-specific answer.
Primary code source
https://codelibrary.amlegal.com/codes/anaheim/latest/anaheim_ca/0-0-0-67963
Submittal checklist
https://www.anaheim.net/DocumentCenter/View/35053/Accessory-Dwelling-Unit-Submittal-Requirements-Checklist
Parking code
https://codelibrary.amlegal.com/codes/anaheim/latest/anaheim_ca/0-0-0-69182
Internal links
Top questions
Summaries reflect official source links and the structured ADU rule data collected for HomeFeasible's first launch. Regulations change and individual parcels vary; verify current requirements with the city planning department or run a parcel-specific check before making decisions.
Canonical URL: https://homefeasible.com/city/anaheim/adu
