Knife River Corporation Northwest
Construction company in Portland, OR 97231
About this company
Knife River Corporation Northwest is listed as a construction company at 14545 NW St Helens Rd in Portland, Oregon, in Multnomah County. It is one of 6 general contractors in ZIP 97231.
Other construction companies nearby
Sar Environmental10818 NW Saint Helens Rd, Portland
2.7 mi(503) 519-3604
Willamette Construction Services8823 N Harborgate St, Portland
2.8 mi(971) 420-8150
Revive Construction9755 N Syracuse St, Portland
3.7 mi(503) 544-3994
ProBuild Contractors6710 N Catlin Ave, Portland
3.9 mi(503) 206-7939
Advanced American Construction Inc.8444 NW St Helens Rd, Portland
4.1 mi(503) 445-9000
Housing market around ZIP 97231
Figures describe the local area, not this company.
Typical home value$687,000+1.7% past year · +35% in 10 years
12-month value outlook−0.4%Roughly flat
Days to sale agreement23Portland metro · 26 a year ago
New homes permitted, 20251,594Multnomah County
Listings with a price cut31.8%Portland metro
Sale price vs list99.7%Portland metro
New construction sales371Portland metro, Aug · −19% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Multnomah County permitted 1,594 new homes in 2025, including 540 apartment units. 18% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.