Which ADU type fits my house?

How do I know which ADU type fits? Compare the household goal with the yard, garage, house, access, privacy, and utilities. A site visit and records review usually narrow the choices.

A detached unit, conversion, attached addition, and JADU affect different parts of the property. The right first comparison is the work each one creates.

What belongs in an ADU estimate?

What should an estimate include? Ask for the referenced drawings, site work, utilities, building systems, finishes, allowances, exclusions, inspections, and restoration.

Ask whether the quote includes access, protection, utility work, City coordination, allowances, finish installation, cleanup, and repairs to the existing property.

Can every garage become living space?

Can a garage always be converted? No. The structure and proposed use need review. Slab, framing, moisture, height, openings, services, and unpermitted work can affect the scope.

A garage must be investigated as a structure. Existing walls may still need major work before the space performs as a dwelling.

Why do ADU schedules vary?

How long does an ADU take? It depends on design decisions, investigations, City review, selections, procurement, site conditions, inspections, and changes. Ask for dependencies rather than a generic promise.

Where should I check Costa Mesa rules?

Where should I verify rules? Start with the City of Costa Mesa and California HCD, then obtain property-specific answers from the responsible professionals and agencies.

For a question tied to your own lot, call (949) 503-8004. The service overview, cost guide, and permit guide cover the next level of detail.

Where to confirm information about common ADU questions.

Common ADU questions should be checked against current City and state pages; record the address, drawing, and date covered by the answer. For common ADU questions, check the City of Costa Mesa ADU page, California HCD, and CSLB hiring guidance. For common ADU questions, our Costa Mesa ADU Contractor homepage shows how it connects with the rest of the project.