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BPC-019 Third Party Plan Check Approved Consultants

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Version: 09/28/2021

List of approved consultants for applicants utilizing Third Party Plan Check (TPPC). Other consultants may also be qualified if pre-approved by the Chief Building Official prior to use. Please refer to BPC-013 Third Party Plan Check for additional information.

Note: In general, Permit Sonoma does not maintain lists of design and development professionals. However, there are a few occasions for which we allow third party inspections or plan check. In these cases, we maintain public lists of third party agencies.

Agency Name: 4LEAF, Inc.
Address:2126 Rheem Drive, Pleasanton, CA 94588
Phone: (925) 785-3581
(925) 462-5959
(925) 462-5958 (fax)
Agency Name: Ballard and Watkins Construction Services
(Residential projects only)
Address:174 Pine Street, San Anselmo, CA 94960
Phone: (415) 515-9433
Agency Name: Bureau Veritas North America Inc.
Address:180 Promenade Circle, Suite 150, Sacramento, CA 95834
Phone: (916) 725-4200
(877) 235-0653 (toll free)
(916) 725-8242 (fax)
Agency Name: Coastland Civil Engineering
Address:1400 Neotomas Avenue, Santa Rosa, CA 95405
Phone: (707) 571-8005
(800) 409-2435 (toll free)
(707) 571-8037 (fax)
Agency Name: Code Source
Address:7064 Corline Court, Suite D, Sebastopol, CA 95472
Phone: (707) 823-8489
Agency Name: Phillips Seabrook Associates
Address:100 Stony Point Road, Suite 190, Santa Rosa, CA 95401
Phone: (707) 544-9500
(707) 544-9502 (fax)
Agency Name: TRB & Associates
Address:3180 Crow Canyon Place, Suite 216, San Ramon, CA 94583
Phone: (925) 866-2633
(925) 790-0011 (fax)