Our mission is to help homeowners in Napa and Sonoma Counties build accessory dwelling units (ADUs) by providing homeowners with education, resources, and information.
One of the most common requests we get is for assistance with identifying the professional team that will help folks on their ADU project. To assist homeowners with this, on an ongoing basis we add vendors to the list below that can help you with a number of aspects of your ADU project.
The Napa Sonoma ADU Center’s role is limited to serving as an objective nonprofit resource for homeowners.
We want to help you ask the right questions to inform your decisions regarding the selection of a professional ADU team. Any contract for services on a homeowner’s ADU project is between each homeowner and your chosen professional team. Once you engage professionals, the Napa Sonoma ADU Center is available to help answer your questions on an as-needed basis along the way.
The list of industry professionals below is for informational purposes only. Napa Sonoma ADU cannot take responsibility for the services or conduct of any vendor.
You should make certain to conduct your own due diligence before engaging any professional for services on your ADU project, including requesting bids from an average of three professionals within the relevant vendor category before selecting the professional(s) that are the best fit for you and your ADU project. For more resources to guide your selection process, scroll to the bottom of this page. You can learn more about the overall ADU Process on page 8 of our ADU Workbook.
If you have a poor experience with one of the vendors listed below, please reach out and let us know at: info@napasonomaadu.org.
Finance Professionals
Sean Charter
Assistant Manager - Construction Lending
Redwood Credit Union
(800) 609 - 9009 |
scharter@redwoodcu.org
Our partner on an innovative ADU construction loan product that opens up financing for homeowners who may not be able to qualify for traditional financing. Learn more here & reach out to RCU for a 1:1 consult!
Lindsay Moon
Licensed broker and builder
Searchlight Lending
(415) 819 - 3794 |
lindsay@searchlightlending.com
Provides both traditional and non-traditional financing, e.g. for undocumented, unemployed, self-employed, & other individuals.
Elizabeth Giron
Oficial de préstamos hipotecarios
Searchlight Lending
(415) 355 - 4121 (oficina)
(415) 827 - 5415 (mobile)
elizabeth@searchlightlending.com
Se habla español.
Laura Blair
Construction Escrow Account Provider
BuildZig Funds Control
(800) 380 - 0180 |
Contact
RenoFi
Second mortgage Home Equity loans based on the AFTER-construction value of your ADU.
Loan amounts up to $499,999
CalHFA $40,000 ADU grant available
Architects + Designers
Cottage Tech
Design and Construction
cotta.ge
hello@cotta.ge
Craiker Architects
Architect
craiker.com
(707) 224 - 5060 | info@craiker.com
Fritz Architecture-Urbanism
Architect
fritzarchitecture.com
(707) 975 - 6220 | paul@fritzarchitecture.com
Inspired ADUs
Architect
inspiredadus.com
(800) 503 - 5769 | Contact
JLM Designs
Designer
jlm-designs.net
(707) 501 - 8944 | Contact
Kenneth P Munson - Architect, A.I.A.
Architect
kpmarchitect.com
(707) 433 - 3100 | Contact
Morse & Cleaver Architects
Architect
morsecleaver.com
(707) 888 - 4959 | claudia@morsecleaver.com
Napa Design Partners
Architect
napadesignpartners.com
(707) 275 - 5000 | Contact
North Coast Packaged Homes
Designer
northcoastpackagedhomes.com
(707) 328 - 3192 | Contact
Paul Kelley Architecture
Architect
paulkelleyarchitecture.com
(707) 257 - 1148 | info@paulkelleyarchitecture.com
Sustainable AF
Architect
sus-af.com
(707) 205 - 9597 | Contact
TBE Architecture
Architect
tbearch.com
(707) 934 - 1000 | ray@tbearch.com
The 8th Wave
Designer
8thwave.co
(707) 479 - 5373 | robin@8thwave.co
The Design & Building Works
Designer
thedesignandbuildingworks.com
(707) 526 - 9566 | Contact
For more resources, please check out our ADU Workbook. Find out more about how to select a design professional on page 43. You can also do a useful Initial Design Exercise activity on page 4 and check out details on Designer Types on page 48.
Permit Assistance Services
Keystone Construction Group, Inc.
Preconstruction/Permitting Services
(707) 365 - 8367 |
bnelson.kcg@gmail.com
Paladin Permit Services
Permitting Assistance
(707) 529 - 1890 |
tom@paladinpermits.com
Pridmore & Company Inc.
Surveying/Permit Consultation
pridmoreandco.com
(707) 256-5001 | Contact
General Contractors + Builders
Brandywine Building & Design
Builder
brandywinebuilding.weebly.com
(707) 572 - 4422 | Contact
Devine Construction
Builder
devineconstructionnapa.com
(707) 254 - 0547 | Contact
Fondare Finish Construction
Builder
fondarefinish.com
(707) 293-9241 | Contact
GreenRun Construction
Builder
greenrunusa.com
(707) 812 - 7006 | Contact
Hare Construction, Inc
General Contractor
hareconstruction.com
(831) 655-9507| Contact
IMH Construction
Builder
(707) 829 - 3779 | imhconstruction.kennedy@gmail.com
JMW Builders
Builder
jmw-builders.com
(530) 913 - 7800 | jmwcinc@aol.com
Matthew Scott Construction
Builder
matthewscottconstruction.com
(707) 372 - 4090 | Contact
Sonoma County Builders, Inc.
Builder
sonomacountybuilders.com
(707) 546 - 2228 | Contact
Valley Home Development Corp
Modular, Panelized
valleyhomedevelopment.com
(707) 429 - 3300
Discover more information on how to choose a General Contractor on pages 84-87 of our ADU Workbook.
Prefab Builders
Adore Homes
adore-homes.com
(650) 395-9882| Contact
Hybrid Prefab Homes
hybridprefabhomes.com
(916) 539-6778| Contact
JPW Development Co., LLC
Manufactured
myprefabhomes.com
John Piccolo-Wignall | (707) 372-0560 Contact
Perpetual Homes ADU
perpetualhomesadu.com
(925) 980 - 2351| Contact
prefabADU
Prefab Panelized Kits
prefabadu.com
(888) 238 - 5487| Contact
Wolf Industries
wolfind.com
(360) 912 - 9519| Contact
Check out page 78 of our ADU Workbook to learn about traditional versus prefab construction as well as to learn about the different types of prefab construction.
Geotechnical Engineers
PJC Associates
pjcassociatesinc.com
(707) 584 - 4804 | Contact
Engineers
BC Engineering Group
Civil Engineer
bcengineeringgroup.com
(707) 542 - 4321 | Contact
MKM & Associates Structural Engineers
Structural Engineer
mkmassociates.com
(707) 578 - 8185 | Contact
More Professionals
The professionals on this list work in both Napa and Sonoma counties and perform site evaluations and design alternative sewer disposal systems. They may offer various other services including geotechnical analysis, septic analysis, surveying, civil engineering, etc.
The professionals on this list are qualified septic consultants.
Title 24/CalGreen Energy Consultants
A Title 24/CalGreen Energy consultant is a specialist who analyzes architectural plans to ensure they comply with Title 24, the code section that deals with energy efficiency, and CalGreen, the “green building code.”
Typically the designer/architect will handle the relationship with the Title 24/CalGreen consultant. There may be 1 or 2 rounds of finessing the design to make it comply before it can be submitted to the jurisdiction for approval. Check out our ADU Workbook on page 66 for more information on Title 24.
Some jurisdictions require that homeowners select a consultant from their list of approved vendors, including the City of Santa Rosa, Sonoma County, and City of Sonoma. Those lists of consultants, who can also work in other jurisdictions, are included here:
City of Santa Rosa Approved CALGreen Inspector List (last updated September 2020)
County of Sonoma | Permit Sonoma CALGreen Special Inspection Agency Recognition List (last updated November 2020)
City of Sonoma Authorized Special Inspection Companies (Category #11) (last updated October 2020)
Additional resources on how to hire & select your project team can be found at
CA Department of Consumer Affairs California Architects Board Consumer’s Guide to Hiring an Architect
CA Department of Consumer Affairs Consumer’s Guide to Hiring a Landscape Architect
CA Department of Consumer Affairs Contractors State License Board: Information on the status of a contractor’s license and tips on hiring a builder
CA Department of Consumer Affairs Consumer Guide to Engineering and Land Surveying (including hiring an engineer or land surveyor)
CA Public Utilities Commission (CPUC) California Solar Consumer Protection Guide
