Plan record

ADU Shed Roof with Slab on Grade Foundation

ADU Shed 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 and 1 bath; bedroom count is not listed. It originated in the Portland, Washington County, Oregon, USA program. This directory currently shows acceptance in Portland, Clackamas County, Oregon, USA and Portland, Washington County, Oregon, USA. Source context comes from City of Portland, last checked Sep 8, 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 Government PDF
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Source-backed summary

What public sources list

ADU Shed 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 and 1 bath; bedroom count is not listed. It originated in the Portland, Washington County, Oregon, USA program. This directory currently shows acceptance in Portland, Clackamas County, Oregon, USA and Portland, Washington County, Oregon, USA. Source context comes from City of Portland, last checked Sep 8, 2026. Use the linked provider, location, and source records to verify current acceptance before relying on the plan.

Details

Plan facts

Plan identifier
Not listed in source
Status
Pre-approved
Size
576 sq ft
Bedrooms
Not listed in source
Bathrooms
1 bath
ADU type
Detached
Construction type
Stick built
Plan fee
$0
Estimated cost
Not listed in source
Last checked
Sep 8, 2026

Plan notes

Notes

Foundation notes
Concrete slab-on-grade floor and foundation.
Utility notes
Utility connections and capacity remain site-specific.
Energy notes
Plan use remains subject to the current Oregon Residential Specialty Code and site conditions.
Accessibility notes
Not listed in source
Permit fee notes
Plan document is free; permit, trade, utility, SDC, and construction costs remain.
Cost notes
Not listed in source
Additional notes
The plan labels a sleeping area rather than publishing a bedroom count; bedrooms remains NULL.

Source and evidence

ADU Shed Roof with Slab on Grade Foundation

Government PDF
Publisher
City of Portland
Source type
Government PDF
Reliability
Official government PDF (4/5)
Last checked
Sep 8, 2026
Accessed
Sep 8, 2026
Official source Plan page Plan document

Accepted-in locations

Accepted Locations

2 accepted locations