The starting point. Eligibility depends on the property, proposed unit, existing conditions, and current requirements. This planner helps organize the discussion; it does not make an approval determination.
Bring the existing property into focus.
Collect the address and parcel information, photographs, available drawings, and any permit history. Describe whether you want a new detached residence, a garage conversion, an attached unit, or a JADU. If living space already exists without permits, say so clearly when requesting guidance.
Walk the property as a future occupant and as a construction team. Note the entrance, access route, outdoor areas, existing structures, and services. Record which areas must remain in use during construction and which features you hope to retain.
Make the unknowns useful.
List what needs confirmation rather than guessing. Coastal-zone location, the applicable review path, service connections, existing structural condition, and a proposed layout are all productive questions when tied to the actual property.
Read the Huntington Beach ADU requirements guide, compare detached construction with garage conversion work, and review ADU floor-plan decisions. Your brief should identify the next information to gather, not pretend every issue is already resolved.
Compare options using the same property facts.
Describe what you know about the detached-building area, existing garage, and any space connected to the main residence. For each option, identify the access route, affected structures, service questions, and outdoor areas you want to keep. This gives the project team a common basis for comparison.
Keep your priorities visible while the options are reviewed. Privacy, a separate bedroom, a usable kitchen, and retaining outdoor space may compete for the same footprint. Ask which tradeoffs each option creates rather than selecting a type solely because it sounds simpler or less expensive.
Our detached-home scope guide and garage conversion work plan explain different construction starting points. For work connected to the house, review the attached option comparison. Record open questions instead of assigning a conclusion the property review has not established.
Prepare a small, useful property-information packet.
Start with available drawings, photographs, and records you already have. Label photographs so the access route and proposed area are understandable to someone who has not visited. If you know of a previous alteration, describe it and note whether supporting records are available.
Do not assume an old drawing reflects every current condition. Mark uncertainties for the responsible professional to review. A useful packet separates known information from an estimate, recollection, or question. If coastal-zone status has been discussed, include the property details and the direction received rather than paraphrasing it as an approval.
Use the coastal planning record guidance and permit document checklist to keep the information organized. The planner below creates a personal summary; it does not replace a survey, plan set, or application document.
Turn the brief into a list of next actions.
For each unknown, identify the next information needed and who is appropriate to address it. A design choice may belong with the designer; a City process question belongs with the relevant reviewing authority; an existing-condition concern may need professional investigation. Avoid turning every uncertainty into a guessed number in the budget.
Then record which decisions depend on those answers. A proposed footprint, service route, or construction assumption may remain provisional. The homeowner can still clarify priorities and gather records while that work proceeds, without treating the project as approved or fully priced.
When discussing a proposal, use the cost comparison framework and contractor questions. Ask how the findings are reflected in scope, allowances, exclusions, and responsibilities. The purpose of preparation is fewer hidden assumptions, not a promise that every site question can be resolved by an online form.
Official starting points: Huntington Beach ADU information and the City Permit Center. Confirm requirements for the actual property with the responsible authority.
Prepare your ADU property brief.
No contact details are required. This tool creates a downloadable text file for you; it does not send a request or book a consultation.
About this planning tool.
Does this tool confirm that I can build an ADU?
No. It organizes property information and open questions for a project-specific review. It does not evaluate eligibility, issue an estimate, or replace City and professional guidance.
Will downloading the brief contact your team?
No. The download creates a file in your browser for you to save or share. No inquiry is sent and no appointment is booked.