California / Builders / Mana Construction Inc
Licence verified, no local permit history
CSLB #1043320 · MANA CONSTRUCTION INC · Corporation
Design-build ADU contractor based in Vallejo. Builds detached ADUs. Published prices start at $139,000. Says it serves 1 California city.
No ADU permits are on file under this licence in the cities we cover. Most California cities do not publish the contractor's name on a building permit, so this usually reflects what a city discloses rather than what a builder has built. Ask them directly for recent addresses and permit numbers you can look up.
| City | Standing | ADU permits | Pre-approved plans |
|---|---|---|---|
| Concord | Licensed | none | no |
| Danville | Licensed | none | no |
| Walnut Creek | Licensed | none | no |
Mana Construction is a family-owned contractor in Vallejo building ADUs, new homes, and additions across Solano, Contra Costa, Alameda, Marin, and Santa Clara counties. Nancy and Mauricio Cabrera founded it in 2017. Studio and one-bedroom ADU layouts are the main offering, with design included.
The company’s own description · licence shown on their advertising matches the state register
| Model | Sq ft | Bed | Bath | From |
|---|---|---|---|---|
| One Bedroom ADU | 1 | |||
| Studio ADU | 0 | |||
| Small ADUs | 350 | $139,000 | ||
| Large ADUs | 456 | $199,000 |
Starting prices for a base model. They rarely include site work, utility connections, or city fees. Get a written quote against a drawing set before comparing builders on price.
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ADU Standards does not issue zoning determinations and does not endorse contractors. Licence details are from the California Contractors State License Board, checked 2026-08-15. A city that pre-approves a plan has vetted the plan, not the builder. Always confirm licence standing at cslb.ca.gov before you sign anything.