Tournesol Siteworks
Construction company in Union City, CA 94587
About this company
Tournesol Siteworks is listed as a construction company at 32990 Alvarado Niles Rd in Union City, California, in Alameda County. It is one of 27 general contractors in ZIP 94587.
Other construction companies nearby
JMCR Kitchens33447 Western Ave, Union City
0.6 mi(408) 817-0584
Hillyard1671 Atlantic St Bldg 4, Union City
0.6 mi(510) 675-9304
Musk Construction Bathroom Remodeling | Union City33401 Western Ave, Union City
0.7 mi(510) 470-7816
Southland Industries33225 Western Ave, Union City
0.7 mi(510) 477-3300
KR Surface Industries1605 Whipple Rd, Hayward
0.9 mi(877) 330-1584
Housing market around ZIP 94587
Figures describe the local area, not this company.
Typical home value$1,196,000−1.9% past year · +69% in 10 years
Typical rent$2,913+7.8% past year
12-month value outlook+1.4%
New homes permitted, 20252,778Alameda County
Days to sale agreement16San Francisco metro · 22 a year ago
Listings with a price cut21.2%San Francisco metro
Sale price vs list106.1%San Francisco metro
New construction sales91San Francisco metro, Aug · −32% 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: Alameda County permitted 2,778 new homes in 2025, including 1,604 apartment units. 16% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.