Detached ADUs
New accessory dwelling units require a property review, early site constraints, and coordinated architectural and engineering documentation where applicable.
Los Angeles · ADU design planning
ADU plans & garage conversion design in Los Angeles
Designing a backyard ADU or converting an existing garage in Los Angeles? Start with your address, proposed square footage, existing structures and project goals.
Request Property-Specific ConsultationPreliminary consultation only; zoning and permit approvals are determined by the governing agency.
AHAE Services
ADU plans and garage conversion plans
Garage conversion plans
Understand the condition and legal status of the existing garage before planning habitable rooms, openings, insulation and utilities.
Attached ADUs & additions
Explore design alternatives that coordinate access, privacy, existing construction and any applicable permit requirements.
The Los Angeles planning process
Start with the property, not a generic plan.
Los Angeles ADU reviews depend on the address, existing lot conditions, zoning and hillside or other applicable planning constraints. City Planning publishes ADU housing guidance, while Los Angeles Building & Safety administers plan check and permits.
Los Angeles-specific review: identify the property in the appropriate City records before choosing detached ADU, garage conversion or attached ADU design. Check applicable property overlays and plan-check requirements.
Official resources
Review the latest regulations with the authority having jurisdiction. These are independent government resources, not AHAE endorsements.
Frequently asked questions
Los Angeles project planning questions
Can I build an ADU on my property?
Eligibility depends on the specific parcel and current Los Angeles rules, not only the city name. AHAE can help assemble an initial information package for review.
Do I need plans for a garage conversion?
Permit-ready documents are normally required. The needed calculations, disciplines and stamps depend on the project and jurisdiction.
Does an ADU design quote include construction?
Our inquiry concerns professional design and coordination scope. Construction costs, city fees and other third-party costs are estimated separately unless expressly included.
Request a project review