California ADU Directory
Find the right ADU builder before you sign a contract.
ADU Builder Hub helps homeowners compare local builders, understand permitting and cost ranges, and get matched with contractors that fit the scope, timeline, and budget of their project.
Run an ADU company? See builder plansHow It Works
01
Compare local builders
Browse curated listings, service areas, and builder websites before you start calling around.
Explore Los Angeles02
Check rules and costs
Get the baseline numbers homeowners care about first: permit timing, build ranges, setbacks, and rental math.
See the city guide03
Request a shortlist
Share your timeline and budget, and get pointed toward builders that fit the shape of your project.
Start the match formMarkets
Live directory
Los Angeles, CA
Compare ADU builders and contractors in Los Angeles
Builders
71
Permit time
2-4 months
Build cost
$100k-400k
Rent range
$2,500-4,000
Live directory
Pasadena, CA
Compare ADU builders and permit-ready options for Pasadena homeowners
Builders
6
Permit time
2-5 months
Build cost
$110k-425k
Rent range
$2,200-3,800
Live directory
Glendale, CA
Compare ADU builders and city-specific Glendale permit constraints
Builders
5
Permit time
2-5 months
Build cost
$105k-410k
Rent range
$2,100-3,700
Live directory
Long Beach, CA
Compare ADU builders and state-law-driven permit options for Long Beach
Builders
4
Permit time
1-4 months
Build cost
$115k-420k
Rent range
$2,100-3,900
For Builders
Want more visibility with homeowners already researching ADUs?
Builder plans add better placement, richer listing detail, and a stronger trust layer as the directory expands into more California markets.