BPC-019 Third Party Plan Check Approved Consultants

Version: 11/27/2024

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
Fax: (925) 462-5958
Email: MRenner@4LEAFINC.com

Agency Name: Ballard and Watkins Construction Services
(Residential projects only)
Address: 174 Pine Street, San Anselmo, CA 94960
Phone: (415) 515-9433
Email: mgwatkins@aol.com

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)
Fax: (916) 725-8242
Email: Craig.Baptista@bureauveritas.com
Andrea.Coley@bureauveritas.com

Agency Name: Coastland Civil Engineering
Address: 1400 Neotomas Avenue, Santa Rosa, CA 95405
Phone: (707) 571-8005
(800) 409-2435 (toll free)
Fax: (707) 571-8037
Email: lucido@coastlandcivil.com

Agency Name: Code Source
Address: 7064 Corline Court, Suite D, Sebastopol, CA 95472
Phone: (707) 823-8489
Email: info@CodeSourceCodeGreen.com

Agency Name: Development Compliance Solutions
Address: 110 Amber Grove Drive, Suite 110, Chico, CA 95926
Phone: (530) 776-4915
Email: ldepaola@devcomca.com

Agency Name: MKM & Associates Structural Engineering
Address: 5880 Commerce Boulevard, Suite 105, Rohnert Park, CA 94928
Phone: (707) 578-8185 extension 125
Fax: (707) 578-7153
Email: mark@mkmassociates.com

Agency Name: Phillips Seabrook Associates
Address: 100 Stony Point Road, Suite 190, Santa Rosa, CA 95401
Phone: (707) 544-9500
Fax: (707) 544-9502
Email: daryl@phillipsseabrook.com

Agency Name: TRB & Associates
Address: 3180 Crow Canyon Place, Suite 216, San Ramon, CA 94583
Phone: (925) 866-2633
Fax: (925) 790-0011
Email: tbailey@TRBplus.com