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California / Santa Clara / ADU builders

ADU builders in Santa Clara, California

The short answer

33 licensed contractors building accessory dwelling units in Santa Clara, and 2 whose plans Santa Clara has pre-approved. Every licence below was checked against the California state register. Santa Clara does not publish contractor names on building permits, so this list ranks on licence standing and pre-approved plans.

California Contractors State License Board, checked 2026-08-15
How to read this. Licence details come from the California Contractors State License Board and are dated on each profile. Permit counts reflect only those cities that publish the contractor's name on a building permit, so a builder with none listed may simply have worked where nothing is published. A city that pre-approves a plan has vetted the plan, not the builder, and does not endorse it. ADU Standards takes no payment for placement. Confirm any licence at cslb.ca.gov before you sign.

Ordered by what the records confirm

The list
1

Framework First Inc

plans pre-approved by Santa Clara

Pre-approved Licence clear 7 years licensed Workers’ comp on file

CSLB #1047146 · SALINAS

3

Acton Construction Inc

Nearby permits Licence clear 34 years licensed Workers’ comp on file

CSLB #638333 · CAMPBELL

4

Valley Home Builders Inc

Nearby permits Licence clear 19 years licensed Workers’ comp on file

CSLB #889458 · SANTA CLARA

10

MVP Builders

Licensed Licence clear 10 years licensed Workers’ comp on file

CSLB #1009142 · WOODLAND HILLS

11

Imkat Construction Corp

Nearby permits Licence clear 4 years licensed Workers’ comp on file

CSLB #1094866 · SACRAMENTO

14

Built Icon

Licensed Licence clear 6 years licensed Workers’ comp on file

CSLB #1060193 · CLAYTON

15

Asl Remodeling Inc

Licensed Licence clear 6 years licensed Workers’ comp on file

CSLB #1060310 · LOS GATOS

16

Home By Tom Inc

Licensed Licence clear 5 years licensed Workers’ comp on file

CSLB #1079020 · MORAGA

17

Nailed It Builders Inc

Licensed Licence clear 4 years licensed Workers’ comp on file

CSLB #1089504 · SANTA CLARA

18

Aldridge Construction

Licensed Licence clear 4 years licensed Workers’ comp on file

CSLB #1081584 · SALINAS

21

Element Home Remodeling

Licensed Licence clear 7 years licensed Workers’ comp on file

CSLB #1044595 · MOUNTAIN VIEW

24

Prada Builders Group

Licensed Licence clear 2 years licensed Workers’ comp on file

CSLB #1116392 · SAN JOSE

25

Nest Builders

Licensed Licence clear 2 years licensed No workers’ comp on file

CSLB #1117837 · MILL VALLEY

26

Driven Construction Llc

Licensed Licence clear 1 years licensed Workers’ comp on file

CSLB #1126085 · ALAMEDA

27

ADU Builders Group

Licensed Licence clear 1 years licensed Workers’ comp on file

CSLB #1126603 · HAYWARD

30

Sigura Construction Inc

Licensed Licence clear 20 years licensed Workers’ comp on file

CSLB #865155 · SUNNYVALE

31

Feldman Construction

Licensed Licence clear 4 years licensed No workers’ comp on file

CSLB #1090391 · SANTA CLARA

32

Expand ADU Inc

Licensed Licence clear 2 years licensed No workers’ comp on file

CSLB #1122371 · FREMONT

33

Ladc Construction Inc

Nearby permits Suspended: no workers’ compensation on file 7 years licensed Workers’ comp on file

CSLB #1050698 · SAN JOSE

What Santa Clara charges

The city’s published schedule

Quoted from Santa Clara’s own fee schedule (FY 2026/27). These are city fees only. They do not include what a builder charges to design and build the unit.

Plan check
basis sqft-based, table explicitly covering ADUs
table name SINGLE-FAMILY / DUPLEX / ADDITIONAL DWELLING UNIT RESIDENTIAL SCALED PLAN REVIEW AND PERMIT FEE - PLAN REVIEW
detail 1 to 250 sq. ft. = $732.00. 251 to 1,000 sq. ft. = $732.00 for the first 250 sq. ft. plus $292.80 for each additional 100 sq. ft. or fraction thereof. 1,001 to 3,000 sq. ft. = $2,928.00 for the first 1,000 sq. ft. plus $146.40 per additional 100 sq. ft. 3,001+ = $5,856.00 for the first 3,000 sq. ft. plus $73.20 per additional 100 sq. ft.
pre approved plan discount For projects using pre-approved ADU plans with no changes or minor changes, plan review is 25% of the original plan review fee of the pre-approved ADU plan. The Permit Center supervisor has discretion to collect regular plan review fees for a substantially changed plan.
as of 2026-04-21
Building permit
basis sqft-based, same ADU-inclusive table
table name SINGLE-FAMILY / DUPLEX / ADDITIONAL DWELLING UNIT RESIDENTIAL SCALED PLAN REVIEW AND PERMIT FEE - PERMIT FEE
detail 1 to 250 sq. ft. = $812.00. 251 to 1,000 sq. ft. = $812.00 for the first 250 sq. ft. plus $249.50 for each additional 100 sq. ft. or fraction thereof. 1,001 to 3,000 sq. ft. = $2,684.00 for the first 1,000 sq. ft. plus $211.40 per additional 100 sq. ft. 3,001+ = $6,912.00 for the first 3,000 sq. ft. plus $105.70 per additional 100 sq. ft.
surcharges Permit Issuance Fee $101.00. Technology Fee 3.37% of building/electrical/plumbing/mechanical permit and plan check fees. General Plan / Advanced Planning Surcharge 12.39% of building permit and plan check fees. Building Conformance Fee = Valuation x $0.00032.
electrical system fee Residential buildings $0.24 per sq. ft.; new garages, carports and accessory buildings $0.10 per sq. ft.
as of 2026-04-21
School district fees
rate Not published by the City. Santa Clara Unified School District sets and collects.
note The City's ADU handout and Municipal Fee Schedule do not address school facilities fees for ADUs.
Utility connections
sanitary sewer outlet charge conveyance fee Residential: $1.14 per square foot. Residential Accessory Dwelling Unit: $1.14 per square foot (750 SF and larger). Last changed 12/9/2025, Res. No. 25-9515.
wastewater treatment plant capacity fee Residential Dwelling Unit $1,187.00 per dwelling unit; Accessory Dwelling Unit $747.00 per accessory dwelling unit. Charge per City Ordinance 1968 passed by Council on 8/22/2017. No square-footage threshold is stated for this fee.
water Santa Clara Water & Sewer Utilities. No ADU-specific water connection fee identified in the FY 2026/27 Municipal Fee Schedule.
historical note The prior conveyance fee was $2,653 per ADU (62.9% of the $4,218 per-dwelling-unit residential rate, equivalent to an apartment), set with the addition of an ADU fee in 2018. The December 2025 nexus update replaced the per-unit basis with the $1.14 per square foot basis.
source FY 2026/27 Municipal Fee Schedule, Public Works/Engineering p. 199 and Water & Sewer Utilities/Sewer p. 234
as of 2026-04-21
Impact fees
under 750 language verbatim NOTE 3: Per AB 68, a fee cannot be charged for an accessory dwelling unit of less than 750 square feet.
language location FY 2026/27 Municipal Fee Schedule, Public Works Department Engineering Division, 'Justification for Increase in Fees, Rates, and Charges', p. 208. Referenced from the Sanitary Sewer Outlet Charge - Conveyance Fee line on p. 199 via the comment '* See note 3 for accessory dwelling unit rate information'.
park dedication in lieu Residential Development Park Dedication In-Lieu Fees, ZIP Code 95050: Quimby Act (Single Fam) $59,434.00; Quimby Act (Multi Fam) $40,181.00; Mitigation Fee Act (Single Fam) $53,224.00; Mitigation Fee (Multi Fam) $35,982.00. Ord. Nos. 1928, 1937, ordinance date 6/24/2014, fee last changed 2/24/2015. The park fee pages carry no ADU carve-out.
scope caveat The Note 3 exemption is printed in the Public Works Engineering section only. It is not repeated in the Parks & Recreation park dedication in-lieu section or the Community Development building section.

Santa Clara fee scheduleFee schedule PDF

Common questions

How is this list ordered?

By what can be confirmed in public records: the number of accessory dwelling unit permits each contractor has on file in Santa Clara, whether Santa Clara has pre-approved their plans, and their licence standing with the California Contractors State License Board. No builder pays for position and none can request removal.

Are these builders licensed?

Every company listed has been matched to an active California contractor licence and its standing is shown on the card. California law requires a contractor to display its licence number in all advertising, and we check the number shown against the state register before publishing anything a company says about itself.

Why do some show no permit history?

Most California cities do not publish the contractor's name on a building permit. Where a city does not publish it, we cannot confirm completed work, so the card says the licence is verified and nothing more. Ask a builder directly for recent addresses and permit numbers you can look up.

What does it mean that Santa Clara pre-approved a builder's plans?

Under Government Code section 65852.27 every California city must accept ADU plans for pre-approval and publish the resulting list. A pre-approved plan has cleared plan check in advance, which shortens permitting. It is an approval of the plan, not an endorsement of the company that drew it.

Companies we looked at and left out

Also considered

These came up when looking for ADU builders in Santa Clara but did not meet the bar for the list above, usually because they do not advertise a California licence number, do not name Santa Clara as an area they serve, or do not present accessory dwelling units as a service they offer. They are shown so the list above can be checked rather than taken on trust.

Four checks worth ten minutes.

Before you sign
  1. Look the licence up yourself at cslb.ca.gov. It takes under a minute and shows the current status, any suspensions, and the bond.
  2. Ask who carries workers’ compensation for the crew and for every subcontractor. A licensee with no employees may lawfully be exempt, but if someone is hurt on your property you can end up treated as the employer.
  3. Ask for two recent permit numbers in any city, then look them up. A builder who has done the work can produce them immediately.
  4. Get the price in writing against a drawing set. A published starting price is for a base model and rarely includes site work, utilities, or Santa Clara fees.