Summary
- Location
- Fresno County, California, USA
- Accepted plans
- 9 accepted plans
- Providers
- 1 provider
- Origin programs
- 1 program
- Plan size range
- 500 to 1,000 sq ft
- Permit sources
- 3 sources
County context
Fresno County Pre-Approved ADU Plans
Browse official city and county pre-approved ADU plan programs in Fresno County, California.
Included Locations
City
Fresno, Fresno County, California, USA
5 accepted plans
Accepted Plans
9 plans Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 1,000 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 1,000 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 1,000 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Government PDF
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 500 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- 1 bath
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Government PDF
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 500 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 500 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 749 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 749 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Source-backed record Official county source
- Origin program
- Fresno County, California, USA
- Accepted location
- Fresno County, California, USA
- Size
- 749 sq ft
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- May 4, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Permit Requirements
10 requirementsAll
Pre-approval program
3 size categories (500/749/1000 sq ft) x 3 options each = 9 pre-approved plans, free
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Site plan
Required: site plan and grading/drainage plan (not provided by County)
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Geographic limitation
Pre-approved plans designed specifically for use in Fresno County; not for areas subject to snow load, wildfire risk, flood zones, or other special site conditions
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Low water area exclusion
ADUs not allowed in low water areas (verify via Zoning GIS)
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Fire sprinklers
Required per primary residence and local fire district
- Last checked
- May 4, 2026
- Notes
- 500 sq ft Option 1 partial plans show SPRINKLERED: YES.
All
Construction type
Type VB, R-3 occupancy, single-family residence
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Solar (PV)
Per 2022 California Energy Code, Title 24, Joint Appendix JA11, Equation 150.1-C
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Septic/sewer/water
Project-specific; per local conditions and zoning
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Trusses
Owner/contractor provides truss calculations
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
School fees exemption
Exempt under 500 sq ft
- Last checked
- May 4, 2026
- Notes
- Not listed in source
Fees
18 fee recordsAll
Pre-approved plan
FREE
- Last checked
- May 4, 2026
- Notes
- County of Fresno offers pre-approved plans at no cost.
All
Building Plan Check (range)
$278.50 to $407.00
- Last checked
- May 4, 2026
- Notes
- Stored as cents to preserve dollar precision; varies by plan size.
All
Building Construction Permit (range)
$857.37 to $1,253.69
- Last checked
- May 4, 2026
- Notes
- Stored as cents to preserve dollar precision; varies by plan size.
All
Mechanical permit issuance
$41.52
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Electrical permit issuance
$41.52
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Plumbing permit issuance
$41.52
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Mech. install (dwellings)
$50.26 to $107.08
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Elec. install (dwellings)
$120.75 to $151.89
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
On-site sewer piping
$97.25
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
On-site water piping
$97.25
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
On-site gas piping
$97.25
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Bathrooms (dwellings)
$195.60 to $260.62
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
SMI (Strong Motion Instrumentation)
$6.79 to $13.18
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
CA Bldg Standards Comm. Fee
$3 to $5
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Microfilm/Copies
$108.92 to $127.48
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
Workers Comp.
$8.20
- Last checked
- May 4, 2026
- Notes
- Stored as cents.
All
School fees
Exempt under 500 sq ft
- Last checked
- May 4, 2026
- Notes
- Not listed in source
All
Regional Transportation Mitigation Fee
May apply
- Last checked
- May 4, 2026
- Notes
- Not listed in source
Official Sources
3 sourcesAccessory Dwelling Unit (ADU) - County of Fresno
- Publisher
- County of Fresno
- Last checked
- May 4, 2026
Fresno County 500 sq ft ADU Option 1 (Partial Plans)
- Publisher
- County of Fresno
- Last checked
- May 4, 2026
Fresno County 500 sq ft ADU Option 2 (Partial Plans)
- Publisher
- County of Fresno
- Last checked
- May 4, 2026