California / Builders / GR Innovative Builders Inc
Licence verified, no local permit history
CSLB #1085381 · GR INNOVATIVE BUILDERS INC · Corporation
General contractor based in Hercules. Builds detached ADUs, built on site. Says it serves 6 California cities.
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 Most California cities do not publish the contractor's name on a building permit, so this usually reflects what a city discloses rather than what a builder has built.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 |
|---|---|---|---|
| Berkeley | Licensed | none | no |
| Danville | Licensed | none | no |
| Walnut Creek | Licensed | none | no |
GR Innovative Builders is a father-and-daughter company building ADUs, ground-up homes, additions, and remodels in the East Bay. Gilbert Rodriguez runs it with his daughter Marlyn Rodriguez as operations manager. It cites more than 30 years of experience and works out of Richmond, with a Hercules mailing address.
The company’s own description · licence shown on their advertising matches the state register
AngiBBB; A- business rating, not BBB accreditedBuildZoom scoreChamber of CommerceHouzzInstagram
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.