Summary
- Location
- Coconino County, Arizona, USA
- County-level accepted plans
- 45 accepted plans
- Providers
- 0 providers
- Origin programs
- 1 program
- Plan size range
- 384 to 1,000 sq ft
- Permit sources
- 4 sources
County context
Coconino County Pre-Approved ADU Plans
Browse official city and county pre-approved ADU plan programs in Coconino County, Arizona.
Program Overview
This Coconino County page summarizes source-backed county context for Coconino County, Arizona. The current public dataset lists 4 city program pages in this county and 45 county-level accepted-plan records. County-level plan sources include Coconino County. Provider names are Not listed in source.
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 4 fee records and 8 permit requirement records. Missing source fields remain Not listed in source, and directory records do not guarantee permit approval.
Included Locations
City
Flagstaff, Coconino County, Arizona, USA
12 accepted plans
City
Fredonia, Coconino County, Arizona, USA
0 accepted plans
City
Page, Coconino County, Arizona, USA
0 accepted plans
City
Williams, Coconino County, Arizona, USA
0 accepted plans
County-Level Accepted Plans
45 plansAccepted
Equilibrium
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Equilibrium
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Equilibrium
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Equilibrium
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 419 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandma's Contemporary ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandma's Contemporary ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandma's Contemporary ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandma's Contemporary ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 708 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandpa's ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandpa's ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandpa's ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Grandpa's ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 682 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Green Gables
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Green Gables
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Green Gables
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Green Gables
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 524 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Silver Bush
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 723 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Silver Bush ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Silver Bush ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Silver Bush ADU
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Cozy Cottage
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Cozy Cottage
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Cozy Cottage
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Cozy Cottage
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Dwell
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Dwell
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Dwell
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Dwell
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 440 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Guesthouse
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 1,000 sq ft
- Bedrooms
- 2 beds
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Juniper
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Juniper
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Juniper
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Juniper
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 384 sq ft
- Bedrooms
- Studio
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Ponderosa
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Ponderosa
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Ponderosa
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Ponderosa
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 768 sq ft
- Bedrooms
- 2 beds
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Sojourn
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Sojourn
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Sojourn
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
The Sojourn
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 741 sq ft
- Bedrooms
- 2 beds
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Three Peaks
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Three Peaks
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Three Peaks
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- Not listed in source
- Bedrooms
- Not listed in source
- Bathrooms
- Not listed in source
- Last checked
- Aug 19, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Accepted
Three Peaks
Source-backed record Official county source
- Provider
- Not listed in source
- Origin program
- Coconino County, Arizona, USA
- Accepted location
- Coconino County, Arizona, USA
- Size
- 792 sq ft
- Bedrooms
- 1 bed
- Bathrooms
- Not listed in source
- Last checked
- Aug 26, 2026
Verify current acceptance, site limits, and permit requirements with the local building department.
Permit Requirements
8 requirementsUnincorporated county
First-use comprehensive County review
Required because the County has not pre-reviewed the model plan sets.
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- City approval is only a foundation for County review.
Site specific
Climate and snow-load adaptation
May be required based on parcel elevation and County climate zone.
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- City models may only be designed for a 60 psf ground snow load.
Unincorporated county
First-use comprehensive County review
Required because the County has not pre-reviewed the model plan sets.
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- City approval is only a foundation for County review.
Site specific
Climate and snow-load adaptation
May be required based on parcel elevation and County climate zone.
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- City models may only be designed for a 60 psf ground snow load.
Unincorporated county
First-use comprehensive County review
Required because the County has not pre-reviewed the model plan sets.
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- City approval is only a foundation for County review.
Site specific
Climate and snow-load adaptation
May be required based on parcel elevation and County climate zone.
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- City models may only be designed for a 60 psf ground snow load.
Site specific
Climate and snow-load review
County location and elevation may require structural modifications
- Source
- Model ADU Plans Library
- Last checked
- Aug 26, 2026
- Notes
- The County says library plans may only be designed for Flagstaff's 60 lb/sf ground snow load.
Unincorporated county
Comprehensive county plan review on first use
Required because the County has not pre-reviewed the plan sets
- Source
- Model ADU Plans Library
- Last checked
- Aug 26, 2026
- Notes
- Site-specific conditions and County codes may require adjustments.
Fees
4 fee recordsAll
Model plan licensing fee range
$1,000–$3,000
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- Additional designer, climate-modification, and travel fees may apply.
All
Model plan licensing fee range
$1,000–$3,000
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- Additional designer, climate-modification, and travel fees may apply.
All
Model plan licensing fee range
$1,000–$3,000
- Source
- Model ADU Plans Library
- Last checked
- Aug 19, 2026
- Notes
- Additional designer, climate-modification, and travel fees may apply.
Detached
Model plan base fee
$1,000–$3,000
- Source
- Model ADU Plans Library
- Last checked
- Aug 26, 2026
- Notes
- Designer-specific modifications, climate work, travel, permits, and other project costs may be additional.
Official Sources
4 sourcesModel ADU Plans Library
- Publisher
- Coconino County
- Last checked
- Aug 19, 2026
Model ADU Plans Library
- Publisher
- Coconino County
- Last checked
- Aug 19, 2026
Model ADU Plans Library
- Publisher
- Coconino County
- Last checked
- Aug 19, 2026
Model ADU Plans Library
- Publisher
- Coconino County
- Last checked
- Aug 26, 2026