The First Document Every ADU Project Needs
Before a jurisdiction will even review an ADU application, you need a site plan showing the existing lot, structure placement, and where the proposed unit will sit. ADU rules still vary significantly by jurisdiction, but this baseline drawing is nearly universal — even in states with streamlined ADU pathways like California, Oregon, and Washington.
What InQI Draws for an ADU Site Plan
Parcel boundaries & lot dimensions
InQI pulls your lot shape and square footage directly from county parcel records. Matters for ADUs because most jurisdictions cap ADU size as a percentage of lot area or by absolute square footage.
Setbacks & existing structures drawn automatically
Front, rear, and side setbacks based on your parcel's zoning, plus the footprint of your main house. Reviewers use this to confirm your proposed ADU placement clears separation distances.
Editable, designer-ready output
Draw in the proposed ADU, label dimensions, mark utility connections. Export to DXF for CAD or clean PDF for the permit package.
Who This Is For
Building a backyard ADU, garage conversion, or junior ADU who need a professional site plan for the permit application.
Scoping feasibility before committing drafting hours — run the address or APN, see the lot constraints, decide if the project pencils.
Evaluating multiple parcels for ADU potential without paying for surveys on properties that may not be viable.
Code Check
For ADU projects that also need a zoning or building code check, Codes.IQ pulls applicable code references for your jurisdiction — FAR, height limits, setback exceptions, parking requirements — right after your site plan is ready. If you want to see the underlying engine powering it all, the AI Site Plan Generator page walks through the data sources in detail.
