Plan record

ADU Gable Roof with Slab on Grade Foundation

ADU Gable Roof with Slab on Grade Foundation is a pre-approved detached ADU plan from City of Portland Pre-Approved ADU Program. The public source lists it as 576 sq ft, studio, and 1 bath. It originated in the Portland, Multnomah County, Oregon, USA program. This directory currently shows acceptance in Portland, Clackamas County, Oregon, USA, Portland, Multnomah County, Oregon, USA, and 1 other location. Source context comes from City of Portland, last checked Aug 12, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Pre-approved City of Portland Pre-Approved ADU Program Official city source
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Source-backed summary

What public sources list

ADU Gable Roof with Slab on Grade Foundation is a pre-approved detached ADU plan from City of Portland Pre-Approved ADU Program. The public source lists it as 576 sq ft, studio, and 1 bath. It originated in the Portland, Multnomah County, Oregon, USA program. This directory currently shows acceptance in Portland, Clackamas County, Oregon, USA, Portland, Multnomah County, Oregon, USA, and 1 other location. Source context comes from City of Portland, last checked Aug 12, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Details

Plan facts

Plan identifier
Gable / slab-on-grade
Status
Pre-approved
Size
576 sq ft
Bedrooms
Studio
Bathrooms
1 bath
ADU type
Detached
Construction type
Stick built
Plan fee
$0
Estimated cost
Not listed in source
Last checked
Aug 12, 2026

Plan notes

Notes

Foundation notes
Not listed in source
Utility notes
Not listed in source
Energy notes
Not listed in source
Accessibility notes
Not listed in source
Permit fee notes
Not listed in source
Cost notes
Not listed in source
Additional notes
One of four officially listed roof/foundation combinations. Studio treatment reflects the plan's single open sleeping area; site-specific review remains.

Source and evidence

New pre-approved ADU plans now available

Official city source
Publisher
City of Portland
Source type
Plan catalog
Reliability
Official city/county/state government source (5/5)
Last checked
Aug 12, 2026
Accessed
Aug 12, 2026
Official source Plan document

Accepted-in locations

Accepted Locations

3 accepted locations