1
Enter your address
Type your property address. We pull your city's zoning code and the county assessor's records for that exact parcel.
How it works
From your address to your answer, in seconds.
No logins, no waiting on the city, no decoding zoning ordinances yourself. Three steps.
2
See your score and what you can build
Get your Underbuilt score — how much build potential is unused — and a preview of what your property could become.
3
Unlock the full report for
The complete breakdown — buildable area, max size, ADU, height, setbacks, what you cannot do, and a downloadable PDF.
In the full report
Everything the report covers.
Your Underbuilt score — unused potential, in % and square feet.
Property facts — beds, baths, home size, lot size, zone, APN.
Potential vs. built — addition/remodel or teardown/rebuild.
Buildable-area map — your lot boundary and envelope.
Plain-English guidance — what your numbers actually mean.
Detailed zoning guidelines — size, height, setbacks, ADU, more.
What you cannot do — the limits worth knowing up front.
A downloadable PDF — ready to share with your team.
Built on your city's official zoning records.