The highest-value vertical we run.
One ADU builder per market.

California has spent years tearing down the barriers to building an accessory dwelling unit, and demand has followed.

What's driving homeowners to search:

• Statewide reform (SB 9, AB 2221) capped permit timelines and removed owner-occupancy requirements.
• Garage conversions and detached units are far easier to approve than they were.
• The highest housing costs in the country push families toward adding space instead of moving.
• Homeowners chase rental income from a backyard or above-garage unit.

ADU is the highest-ticket vertical we run. A garage conversion averages $80,000 to $130,000, and a detached new build runs $180,000 to $350,000 with strong builder margins. At that job size, a single closed lead can cover a full year of lead generation.

The homeowner who searches "ADU builder" is researching a major investment, not impulse-shopping. The close is slower than an emergency repair but worth many times more, and on an exclusive site you are not bidding against four other firms on the same homeowner.

We rank city-specific ADU and garage-conversion websites across the premium markets where this work concentrates: Conejo Valley, the San Fernando Valley, Ventura County, San Diego County, and the Bay Area. Every site routes to one builder per territory. For per-square-foot pricing, permit-reform detail, and city-by-city variation, see our California ADU cost guide.

Open ADU territories are limited, especially in the premium Conejo Valley, Bay Area, and coastal markets where builds pencil fastest, and they lock quickly. If you build accessory dwelling units and want first access to homeowners in one of these cities, the fastest way to find out what is open is to check your market - no obligation, and every inquiry routes to one builder per territory. You can also browse current open markets or read how the model works before you reach out.