Plan record

County Pre-Approved ADU — 448 SF Studio/One-Bedroom

County Pre-Approved ADU — 448 SF Studio/One-Bedroom is a pre-approved detached ADU plan from County of Santa Barbara (Planning & Development). The public source lists it as 448 sq ft, studio to 1 bed, and 1 bath. It originated in the Santa Barbara County, California, USA program. This directory currently shows acceptance in Santa Barbara County, California, USA. Source context comes from County of Santa Barbara, last checked May 4, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Pre-approved County of Santa Barbara (Planning & Development) Government PDF
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Source-backed summary

What public sources list

County Pre-Approved ADU — 448 SF Studio/One-Bedroom is a pre-approved detached ADU plan from County of Santa Barbara (Planning & Development). The public source lists it as 448 sq ft, studio to 1 bed, and 1 bath. It originated in the Santa Barbara County, California, USA program. This directory currently shows acceptance in Santa Barbara County, California, USA. Source context comes from County of Santa Barbara, last checked May 4, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Accepted location pages

Details

Plan facts

Plan identifier
P1
Accepted locations
Status
Pre-approved
Size
448 sq ft
Bedrooms
Studio to 1 bed
Bathrooms
1 bath
ADU type
Detached
Construction type
Stick built
Plan fee
$0
Estimated cost
Not listed in source
Last checked
May 4, 2026

Plan notes

Notes

Foundation notes
Not listed in source
Utility notes
Not listed in source
Energy notes
Designed to comply with applicable California Building Code; County includes climate zones 4, 5, 6.
Accessibility notes
Not listed in source
Permit fee notes
Reduced plan check fees for pre-approved ADU applications. Per Santa Barbara Independent (2026-04-08): 'fixed permitting fee: $4,200.'
Cost notes
Homeowners can save up to ~$25,000 vs. paying for a custom design (per Director of Planning & Development Lisa Plowman, Noozhawk 2025-07-13).
Additional notes
Plan applies only in unincorporated Santa Barbara County. Studio includes ~105 sq ft bedroom area, kitchen, living area, bathroom, and laundry unit. Plans free to download. Site-specific plan still required. Coastal Zone properties require a Coastal Development Permit. Not suitable for steep slopes, unstable soils, flood hazards, or sites needing special engineering.

Source and evidence

County Pre-Approved ADU Plan Set 1 — 448 SF Studio/One Bedroom

Government PDF
Publisher
County of Santa Barbara
Source type
Plan catalog
Reliability
Official government PDF (4/5)
Last checked
May 4, 2026
Accessed
May 4, 2026
Official source Plan page Plan document

Accepted-in locations

Accepted Locations

1 accepted location

Government PDF
Source
County Pre-Approved ADU Plan Set 1 — 448 SF Studio/One Bedroom
Last checked
May 4, 2026
Additional notes
Plan applies only in unincorporated Santa Barbara County. Studio includes ~105 sq ft bedroom area, kitchen, living area, bathroom, and laundry unit. Plans free to download. Site-specific plan still required. Coastal Zone properties require a Coastal Development Permit. Not suitable for steep slopes, unstable soils, flood hazards, or sites needing special engineering.
Official source Plan document