Kornerstone Concrete
General contractor in Algona, WA 98001
About this company
Kornerstone Concrete is listed as a general contractor based in Algona, Washington, in King County. It is one of 53 general contractors in ZIP 98001.
Other construction companies nearby
Cedarside Construction LLC314 4th Ave N, Algona
0.2 mi(253) 886-9483
Terra Dynamics34721 W Valley Hwy S, Algona
0.8 mi(253) 880-3100
Battery Power Systems201 Frontage Rd N, Pacific
0.8 mi(253) 931-8222
Diverse Developments3108 A St SE, Auburn
1.0 mi(253) 670-2954
Oldcastle Infrastructure2808 A St SE, Auburn
1.0 mi(253) 839-3500
Housing market around ZIP 98001
Figures describe the local area, not this company.
Typical home value$616,000−0.2% past year · +89% in 10 years
Typical rent$2,707+4.8% past year
12-month value outlook−0.1%Roughly flat
New homes permitted, 20258,505King County
Days to sale agreement27Seattle metro · 21 a year ago
Listings with a price cut34.2%Seattle metro
Sale price vs list99.3%Seattle metro
New construction sales417Seattle metro, Aug · −34% 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: King County permitted 8,505 new homes in 2025, including 5,102 apartment units. 30% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.