Will an ADU fit on my property?
Lot area is one starting point. The usable building space also depends on access, existing structures, setbacks, recorded restrictions and utilities.
Sketch the space you actually have
- Mark the main house, garage, driveways, trees, fences and approximate property boundaries. Flag measurements that come from a map rather than a survey.
- Leave room to investigate setbacks, separation from buildings, utility easements and emergency access. A colored parcel on the map does not establish a buildable envelope.
- Try two locations or a smaller footprint. Moving a concept can preserve a useful yard or simplify the route to an entrance.
Walk the routes
- Trace the path from parking to the proposed front door, including lighting, snow storage, privacy and changes in elevation.
- Consider construction access: a narrow side yard may affect equipment, delivery and material handling. Ask the partner what access they need.
- Photograph slopes, retaining walls and overhead lines for discussion. A site visit or professional survey may be needed to understand them.
Identify the unknowns early
- Find existing water, sewer and electrical information where available. Location alone does not establish capacity or permission to connect.
- Ask about recorded easements, plat notes and HOA documents. Bring the documents for review rather than assuming a citywide pathway answers every restriction.
- An existing garage may need structural and moisture work before it can become living space. Compare conversion with replacement as separate scopes.
Prepare for a useful review
- Bring the address, proposed use, rough floor area and your preferred location. Label unknown measurements as unknown.
- Use your city guide to list open questions. A partner can help navigate the applicable requirements and identify the right professional next step.
Turn the checklist into a project plan
Record each open question, the person responsible, evidence needed and target date. Confirm requirements with the city and your licensed design/build professionals.
Find your city guide · Prepare a budget · Discuss this checklist at my free review
Planning guidance. Requirements depend on the property, design and adopted local codes; this guide does not certify compliance. How our guidance is prepared