Cornerstone Construction
Construction company in Issaquah, WA 98029
About this company
Cornerstone Construction is listed as a construction company at 25910 SE Old Black Nugget Rd in Issaquah, Washington, in King County. Federal motor carrier records list 4 drivers and 3 trucks for the company. It is one of 10 general contractors in ZIP 98029.
Other construction companies nearby
Baker Siding Pros3850 Klahanie Dr SE, Sammamish
0.9 mi(206) 240-7599
Awesomer Solutions3171 NE Harrison Dr, Issaquah
1.0 mi(206) 834-5188
Woods At Beaver Lake25810 SE 30th St, Sammamish
1.6 mi(425) 391-8206
Grand Ridge Bulldozing4546 286th Ave SE, Fall City
1.7 mi(425) 222-7766
Englund Construction5647 230th Ave SE, Issaquah
1.9 mi(425) 313-9099
Housing market around ZIP 98029
Figures describe the local area, not this company.
Typical home value$1,097,000−5.7% past year · +88% in 10 years
Typical rent$3,048+2.2% past year
12-month value outlook−0.7%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. 54% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.