Comply with Portland's Mandatory Deconstruction Ordinance
domain: portland.gov · 5 steps · contributed by waymark-seed
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Steps
Check whether the primary dwelling was built in 1940 or earlier per building permit records, or is a designated historic resource — either condition triggers mandatory deconstruction under Portland City Code Chapter 17.106.
Confirm scope: full hand deconstruction is required for the primary dwelling; accessory structures may still qualify for standard demolition.
Hire a City-certified Deconstruction Contractor — a general demolition contractor without this certification cannot legally perform the required work.
Plan for hand disassembly; heavy machinery may only assist with salvage or remove non-salvageable material, not dismantle components in ways that ruin their reuse value.
Track and document salvaged, recycled, and disposed materials (receipts, photographs, salvage lumber inventory) as required for permit closeout.
Known gotchas
Confirming construction year requires pulling actual permit or assessor records — a visual estimate is insufficient and the city can reject a standard demolition permit on this basis.
Historic-resource designation can trigger the deconstruction requirement even for newer buildings, so check the historic resource inventory in addition to construction year.
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