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How It Works

01

Search any address

Enter a property address in California, Florida, or Texas. We pull parcel data from county records in seconds.

02

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Zoning, setbacks, lot dimensions, assessed value — plus what state and local law allows you to build.

03

Run scenarios

ADU, duplex, lot split, multi-unit — see what's possible on your lot with development rules calculated.

Who This Is For

Homeowners

"Can I add a second unit to my backyard?"

Investors

"How many units can I build on this SB 9 lot split?"

Builders & Architects

"What's the max buildable envelope under current zoning?"

Housing News

ADU permits, zoning reform, building code updates — everything builders, architects, and developers need to know.

ADU News

Small backyard homes break new ground

empower.com · May 08

ADU News

California Lawmakers Push Bills to Streamline ADU Building and Tenant Protection

davisvanguard.org · Apr 29

ADU News

Santa Barbara Homeowner Installs Ready-Made ADU by Crane

independent.com · Apr 24

SB 9 & Lot Splits

State bows to federal law over extra residence on one lot in Cape Cod National Seashore

capecodtimes.com · Apr 23

ADU News

Beyond Accessory Dwelling Units: Strategies for More Affordable Housing

newamerica.org · Apr 22

ADU News

Breakfast links: Falls Church approves by-right ADUs

ggwash.org · Apr 21

ADU News

The Missing Middle: Why Accessory Dwelling Units Face Implementation Barriers in Truckee

cayimby.org · Apr 18

ADU News

New accessory dwelling policy approved in unanimous Falls Church vote

arlnow.com · Apr 17

ADU News

The Rise of Accessory Dwelling Units: What Homeowners Across the Country Should Know

bhg.com · Apr 16

Legislation

SB 9 Duplex + lot split
ADU Up to 1,200 sf
SB 1211 Multiple ADUs

Cities