Summary
- Location
- Monterey County, California, USA
- County-level accepted plans
- 3 accepted plans
- Providers
- 1 provider
- Origin programs
- 1 program
- Plan size range
- 515 to 1,200 sq ft
- Permit sources
- 4 sources
County context
Monterey County Pre-Approved ADU Plans
Browse official city and county pre-approved ADU plan programs in Monterey County, California.
Program Overview
This Monterey County page summarizes source-backed county context for Monterey County, California. The current public dataset lists 2 city program pages in this county and 3 county-level accepted-plan records. County-level plan sources include County of Monterey. Provider names include Monterey County Pre-Designed 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 1 fee record and 3 permit requirement records. Missing source fields remain Not listed in source, and directory records do not guarantee permit approval.
Included Locations
City
Salinas, Monterey County, California, USA
4 accepted plans
City
Seaside, Monterey County, California, USA
0 accepted plans
County-Level Accepted Plans
3 plansAccepted
One Bedroom ADU
Source-backed record Official county source
- Origin program
- Monterey County, California, USA
- Accepted location
- Monterey County, California, USA
- Size
- 515 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Jul 28, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Three Bedroom ADU
Source-backed record Official county source
- Origin program
- Monterey County, California, USA
- Accepted location
- Monterey County, California, USA
- Size
- 1,200 sq ft
- Bedrooms
- 3 beds
- Bathrooms
- Not listed in source
- Last checked
- Jul 28, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Two Bedroom ADU
Source-backed record Official county source
- Origin program
- Monterey County, California, USA
- Accepted location
- Monterey County, California, USA
- Size
- 749 sq ft
- Bedrooms
- 2 beds
- Bathrooms
- Not listed in source
- Last checked
- Jul 28, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Permit Requirements
3 requirementsCounty plan users
Site and foundation
County review includes parcel standards; unsuitable conditions may require a soils report or custom foundation.
- Last checked
- Jul 28, 2026
- Notes
- Not listed in source
Affected County parcels
Other review
Water, septic, fire, coastal, design, and hazard requirements can still apply.
- Last checked
- Jul 28, 2026
- Notes
- Not listed in source
Site specific
County site review
County plans still require site, zoning, soils, utilities, fire, coastal, water, and septic review as applicable.
- Last checked
- Aug 12, 2026
- Notes
- Not listed in source
Fees
1 fee recordUnincorporated county
County permits and professional work
Variable; plan use does not eliminate permits, utilities, soils, or other site-specific costs.
- Last checked
- Aug 12, 2026
- Notes
- Not listed in source
Official Sources
4 sourcesADU Development Standards Checklist
- Publisher
- County of Monterey
- Last checked
- Jul 28, 2026
Accessory Dwelling Unit Plans and Information
- Publisher
- County of Monterey
- Last checked
- Jul 28, 2026
Accessory Dwelling Unit Plans and Information
- Publisher
- County of Monterey
- Last checked
- Aug 12, 2026
Online Permit Information
- Publisher
- County of Monterey
- Last checked
- Jul 28, 2026