How to check garage ADU eligibility
An address-specific eligibility discussion starts with the reviewing agency, the existing building, and the proposed unit. Use official guidance to prepare your questions rather than assuming that a nearby project has the same rules.
What you'll learn
- How to identify the reviewing agency
- What details to gather about the garage
- Which questions to ask before choosing a layout
Step by step
- Confirm the jurisdiction
Check whether the property is within an incorporated city or an unincorporated county area. Ask the relevant building or planning department to confirm.
- Describe the building
Note whether the garage is attached, its approximate dimensions, and any existing plans or permits you have.
- Describe your proposed use
Explain whether you want a room connected to the home or a separate unit, and identify the proposed entrance, bathroom, and cooking facilities.
- Ask about property-specific conditions
Ask the reviewing agency which current rules, overlays, application materials, and fees apply to the address and proposed work.
- Document the next step
Record the agency guidance and ask a qualified professional what measurements and drawings are needed to evaluate the plan.
A general guide cannot establish eligibility for a particular property. Confirm the project with the agency responsible for the address.
Official resources
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