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01

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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

‘Whoops’: California Affordable Housing Fix Threatens Mobile Home Park Residents - moneywise.com

moneywise.com · Nov 25

ADU News

Columbus City Council votes to remove red tape for accessory dwelling units

wosu.org · Nov 24

ADU News

California family wins settlement after City charges $55K to build ADU

pacificlegal.org · Nov 19

ADU News

The first home has been rebuilt after the Los Angeles wildfires. It’s an ADU.

politico.com · Nov 19

ADU News

Should accessory dwelling units increase in square footage? Sandwich town meeting Nov. 17

capecodtimes.com · Nov 14

ADU News

Governor Newsom signs four new accessory dwelling unit bills

publicceo.com · Nov 12

ADU News

City Corner: Ashland offers pre-approved plans for building ADUs

ashland.news · Nov 06

ADU News

RDEK launches public engagement on Accessory Dwelling Unit regulation updates

cranbrooktownsman.com · Oct 24

ADU News

Governor Signs Three Bills Assisting Development of ADUs

alamedapost.com · Oct 14

Legislation

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

Cities