Foundation Cost in Oregon (2026)

New-construction foundation pours in Oregon typically run $17,400–$42,400 for a full-house 2,000 sq ft new-construction foundation pour, with crawl-space stem-wall as the dominant residential foundation type. Buried footings must clear the 18-inch design frost line. Oregon's combination of Cascadia subduction zone seismic exposure forcing ASCE 7-22 SDC D1 seismic design category requirements on every coastal residential foundation pour from Astoria to Brookings, ASCE 7-22 SDC D0 seismic detailing across the Willamette Valley including Portland, Salem, and Eugene, statewide radon zone 1 designation across most counties forcing sub-slab depressurization rough-in on every residential foundation, Pacific Northwest high water table across Coastal Range and Willamette Valley driving sump-pump and capillary-break specification, and Pacific salt-spray on every coastal exposure drives the most seismic-and-water-driven foundation engineering on the West Coast.

State Oregon
Cities Covered 14
Typical full-house 2,000 sq ft new-construction foundation pour $17,400 – $42,400
BLS construction-laborer wage $26.84/hr

Oregon climate, soil, seismic & hydrologic drivers

  • Frost-line trench depth: 18-inch design minimum for buried footings
  • Dominant residential foundation type: Crawl-space stem-wall — dominant in Southeast humid corridor and termite-pressure zones
  • Expansive soil risk: Moderate — periodic clay shrink-swell, standard footing reinforcement adequate
  • Seismic design category (ASCE 7-22): SDC D1 — high seismic risk + Special Inspector continuous observation required
  • Hurricane wind tier: Moderate — 110-140 mph design wind, standard tie-down
  • Water table risk: High — periodic water table within footing depth, sump-pump rough-in standard
  • Sulfate exposure (ACI 318): S0 — no sulfate exposure, Type I/II cement adequate
  • IECC climate zone: 4C-5B
  • EPA radon zone: Zone 1 (highest) — passive sub-slab depressurization rough-in required on every basement and slab pour

Oregon licensing & permits

  • License status: Statewide license required
  • License board: Oregon Construction Contractors Board (CCB) — Residential General Contractor (official site)
  • Permit: city or county building permit required for residential foundation pour; CCB Residential General Contractor license required above $1,000 contract; Oregon Reach Code 2022 above-baseline foundation R-value optional; Cascadia subduction zone seismic detailing mandatory on every coastal residential pour

How foundation pour costs vary in Oregon

State-specific code or insurance rule: Oregon Construction Contractors Board (CCB) §701.026 imposes one of the most aggressive residential builder licensing schemes in the country — every Oregon foundation contractor exceeding the $1,000 contracting threshold must hold a Residential General Contractor license plus complete a 16-hour pre-licensure education program and pass a written examination, with the CCB Construction Contractors Education and Outreach Section operating active enforcement against unlicensed contractors statewide, and Oregon Department of Geology and Mineral Industries (DOGAMI) separately publishes Cascadia subduction zone seismic-design maps requiring ASCE 7-22 SDC D1 seismic detailing on every Oregon coastal residential foundation pour.

Cities in Oregon

Compare foundation pour pricing for 14 cities across Oregon.

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