City of Santa Clara pre-approved ADU plans
The pre-approved ADU plans City of Santa Clara publishes, copied as published, with a link to the official page and the date A-du last checked it.
Pre-approved ADU plans
City of Santa Clara
5 plans in the index
A-du last checked the official page on November 3, 2026.
The plans
Prefabricated, detached ADU, 1 story, 660 sf, 2 bed, 1 bathroom
2 bd · 1 ba · 660 sq ft
Not on A-du Build yet
Agency pageSite-built, detached ADU, 1 story, 499 sf, 1 bed, 1 bathroom
1 bd · 1 ba · 499 sq ft
Not on A-du Build yet
Agency pageA-du is not affiliated with HCD or any city or county. This page copies what each agency publishes about its pre-approved ADU plans and links to the official page. Check the agency's page before you rely on anything here. Nothing on this page is legal advice.
Each plan as the agency publishes it
The details below are copied from the agency’s own pages, field by field, with the date A-du last checked each plan.
Abodu Studio / Abodu
- Description:
- Abodu Studio
- Size:
- Prefabricated, detached ADU, 1 story, 340 sf, Studio, 1 bathroom
- Bedrooms:
- Studio
- Bathrooms:
- 1
- Designer:
- Abodu
- Status:
- No status label on the agency page
The agency page says: “To use pre-approved plans, the project must meet all of the following criteria: Lot must be zoned residential and have an existing single-family home or duplex. Lot must NOT be in a flood zone. The project must NOT be on a historic property.”
Listed on the agency page when A-du checked it on November 3, 2026.
Abodu Two+ / Abodu
- Description:
- Abodu Two+
- Size:
- Prefabricated, large, detached ADU, 1 story, 800 sf, 2 bedrooms, 2+ bathrooms
- Bedrooms:
- 2
- Bathrooms:
- 2+
- Designer:
- Abodu
- Status:
- No status label on the agency page
The agency page says: “To use pre-approved plans, the project must meet all of the following criteria: Lot must be zoned residential and have an existing single-family home or duplex. Lot must NOT be in a flood zone. The project must NOT be on a historic property.”
Listed on the agency page when A-du checked it on November 3, 2026.
ADORE Horizon 933 / ADORE Homes Inc.
- Description:
- ADORE Horizon 933
- Size:
- Prefabricated, large, detached ADU, 1 story, 933 sf, 3+ bedrooms, 2+ bathrooms
- Bedrooms:
- 3+
- Bathrooms:
- 2+
- Designer:
- ADORE Homes Inc.
- Status:
- No status label on the agency page
The agency page says: “To use pre-approved plans, the project must meet all of the following criteria: Lot must be zoned residential and have an existing single-family home or duplex. Lot must NOT be in a flood zone. The project must NOT be on a historic property.”
Listed on the agency page when A-du checked it on November 3, 2026.
Prefabricated, detached ADU, 1 story, 660 sf, 2 bed, 1 bathroom / Framework First, Inc.
- Description:
- Prefabricated, detached ADU, 1 story, 660 sf, 2 bed, 1 bathroom
- Bedrooms:
- 2
- Bathrooms:
- 1
- Designer:
- Framework First, Inc.
- Status:
- No status label on the agency page
The agency page says: “To use pre-approved plans, the project must meet all of the following criteria: Lot must be zoned residential and have an existing single-family home or duplex. Lot must NOT be in a flood zone. The project must NOT be on a historic property.”
Listed on the agency page when A-du checked it on November 3, 2026.
Site-built, detached ADU, 1 story, 499 sf, 1 bed, 1 bathroom / Basically Homes LLC, powered by VitalizeBuild Construction
- Description:
- Site-built, detached ADU, 1 story, 499 sf, 1 bed, 1 bathroom
- Bedrooms:
- 1
- Bathrooms:
- 1
- Designer:
- Basically Homes LLC, powered by VitalizeBuild Construction
- Status:
- No status label on the agency page
The agency page says: “To use pre-approved plans, the project must meet all of the following criteria: Lot must be zoned residential and have an existing single-family home or duplex. Lot must NOT be in a flood zone. The project must NOT be on a historic property.”
Listed on the agency page when A-du checked it on November 3, 2026.
Getting a plan permitted
A pre-approved plan still needs a building permit for your lot. For free plans published by a California city or county, you can request an optional flat-fee service, Permitting by Chris Koss, AIA. Chris Koss, AIA, a California-licensed architect who owns A-du, provides this permitting service personally under a separate written agreement with you (the Permitting Services Agreement). It is not performed by A-du, and A-du takes no part of his fee. You can always take a free plan straight to your building department instead. Open any plan on A-du Build to see what applies to it.
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