Trigon Construction Inc

Construction company in San Leandro, CA 94579

About this company

Trigon Construction Inc is listed as a construction company based in San Leandro, California, in Alameda County. It is one of 5 general contractors in ZIP 94579.

Fleet size

Drivers1

Source: FMCSA.

Strong market, open fieldArea profitability for construction in ZIP 94579

Housing demand53

Sales pace, new listings and new construction. Source: Zillow

Customer spending power88

Household income and home values

Room for another contractor85

Less crowded than 85% of US ZIPs

Scored against every US ZIP. An index of local conditions, not this company's results.

County context

One of 1,052 general contractors in Alameda County, CA.

191 roofing companies in Alameda County, CA.

All 2,111 construction companies in Alameda County, CA.

ZIP 94579 at a glance

Population: 20,017 (2,471 per sq mi)
Median age: 46
Households: Median income $99,040 · 49% earn six figures
Housing: 74% owner-occupied
Workforce: 63% labor-force participation · 7.0% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Housing market around ZIP 94579

Figures describe the local area, not this company.

Typical home value$841,000−0.4% past year · +44% in 10 years

Typical rent$3,525

12-month value outlook+1.2%

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. 3% of the homes in this ZIP were built since 2000.

Local figures are estimates from public records and Zillow housing data, updated regularly.