Retaining Wall Cost in Portland 2026
Retaining Wall in Portland costs between $3,657 and $17,066 in 2026, with the average around $7,923. Portland pricing runs 22% above the US national average. Construction of a retaining wall with excavation, a gravel base, poured concrete or block, reinforcement, and drainage behind the wall. Includes backfill and grading.
What retaining wall includes in Portland
Construction of a retaining wall with excavation, a gravel base, poured concrete or block, reinforcement, and drainage behind the wall. Includes backfill and grading.
Typical time on site: 3 to 5 days. Local labor rate: $30/hour for an experienced concrete pro.
What changes the price of retaining wall in Portland
- Wall length and height
- Block versus poured concrete
- Drainage system
- Excavation and backfill
- Soil and slope conditions
A retaining wall quote priced off statewide averages will be off by 10 to 20 percent for Portland, because the metro has its own labor pool, material delivery distances, and permit timelines.
Portland climate and demand for concrete
Mild wet winters; rare snow; moss/moisture issues on roofs; minimal AC historically
Portland permits for retaining wall
Building department: City of Portland Bureau of Development Services (BDS). https://www.portland.gov/bds
Typical permit cost: $250 - $3,000 residential. Inspection time: 7-20 business days. Portland rule: Portland BDS has strict energy code (Reach Code option). Stormwater management requirements. CCB license required for all contractor work in Oregon.
Oregon sales tax and licensing for Concrete
Oregon sales tax: No state sales tax (CAT 0.57% on commercial activity over $1M). No sales tax. Corporate Activity Tax (CAT) at 0.57% on commercial activity over $1M annual.
State license: Oregon Construction Contractors Board (CCB), required: $325 + $20K bond + liability insurance.
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