Find out if you can build an ADU on your property.
Get your ADUgrade™
The recognized score for ADU potential.
Type your address. Our AI reads your satellite imagery, applies California ADU law, and grades your lot A through X. Add the badge to your listing and turn what you can build into real property value.
Enter your address
We pull your parcel, zoning, and high-res aerial imagery in seconds — no signup, no fees.
Get your ADUgrade
Claude AI grades your lot A through X — with placement plan, dollar-figure ROI, and code citations.
Add value to your listing
Share the ADUgrade badge with your agent. Buyers now know exactly what your property's ADU potential is worth.
Why your home needs an ADUgrade
A recognized score that turns invisible ADU potential into a concrete property attribute — visible to buyers, agents, and appraisers.
Adds to your listing value
ADU potential can add 20–30% to a single-family home's price. Until now, no one quantified it on the listing.
Backed by California law
Every ADUgrade is grounded in CA Gov Code §65852.2 — the state-protected 800 sf detached ADU floor — plus your local rules.
AI you can trust
Powered by Claude (Anthropic) reading actual satellite imagery — pools, trees, slope, septic. Not just lot-size math.
How the grade is calculated
Every ADUgrade combines three authoritative layers — county parcel geometry, California state ADU law, and Claude's analysis of your actual satellite imagery. We catch the things 2D rules-checking misses: pools, mature trees, slope, septic systems, fire-defensible-space.
- 1Parcel polygon and zoning code from county GIS records (authoritative, free, public).
- 2Buildable area calculated against CA Gov Code 65852.2's state-protected 4 ft setbacks and existing structures.
- 3Claude vision analysis of high-res satellite imagery: pools, accessory structures, slope, tree canopy, septic indicators.
- 4Final ADUgrade (A / B / C / X) plus an AI-written placement recommendation, in five seconds.
ADUgrade estimates are based on aerial imagery and public records. Slope, septic, easements, and fire-defensible-space requirements may further restrict what's actually buildable. A site visit confirms.