County context

Santa Clara County Pre-Approved ADU Plans

Browse official city and county pre-approved ADU plan programs in Santa Clara County, California.

Source-backed county plan listings

Program Overview

This Santa Clara County page summarizes source-backed county context for Santa Clara County, California. The current public dataset lists 11 city program pages in this county and 2 county-level accepted-plan records. County-level plan sources include County of Santa Clara, Santa Clara County Planning Collaborative, and Santa Clara County. Provider names include County of Santa Clara Pre-Approved ADU Program.

County records may apply only in unincorporated areas or county-administered jurisdictions, so verify the official source before relying on a plan for an incorporated city. County fee and permit data includes 11 fee records and 20 permit requirement records. Missing source fields remain Not listed in source, and directory records do not guarantee permit approval.

Summary

Location
Santa Clara County, California, USA
County-level accepted plans
2 accepted plans
Providers
1 provider
Origin programs
1 program
Plan size range
800 to 1,200 sq ft
Permit sources
11 sources

Included Locations

County-Level Accepted Plans

2 plans

Permit Requirements

20 requirements

Affected unincorporated parcels

Eligibility exclusions

Official county source

County pre-approved plans are not eligible in stated wildfire, flood, or geologic-hazard conditions.

Last checked
Jul 28, 2026
Notes
Not listed in source

Unincorporated county

County eligibility exclusions

Official county source

County preapproved plans are limited to eligible unincorporated sites and exclude stated WUI, flood, geologic, historic, and code-violation conditions.

Last checked
Aug 11, 2026
Notes
Not listed in source

Site specific

County exclusions

Official county source

Wildland-urban interface, flood, geologic, and historic sites may be ineligible; site, Title 24, and truss work remain.

Last checked
Aug 12, 2026
Notes
Not listed in source

Fees

11 fee records

County plan documents

Plan use fee

Official county source

Free to eligible unincorporated County residents

Last checked
Jul 28, 2026
Notes
The County states that at least two hours of plan-review fees and other project costs still apply.

Unincorporated county

Building plan-review fee

Official county source

Minimum two hours of building plan-review time; dollar amount depends on the current fee schedule

Last checked
Aug 11, 2026
Notes
Not listed in source

Official Sources

11 sources