Introduction
West Covina is one of the most active ADU markets in the San Gabriel Valley. With a population over 100,000 and a mix of older single-family homes on generous lots, the city offers strong ADU potential. Uni Construction has completed multiple ADU design projects in West Covina, including detached units on Marbury and throughout the city’s residential neighborhoods.

Why West Covina Homeowners Build ADUs
Large lot sizes: Many West Covina homes sit on 6,000–10,000+ sq ft lots with room for detached ADUs without crowding the main home.
High rental demand: Proximity to Eastland Center, the 10 and 605 freeways, and Citrus Valley Medical Center creates consistent renter demand.
Affordable construction entry: Compared to Pasadena or Glendale, land and Permitting costs in West Covina are lower, improving your return on investment.
Transit-adjacent benefits: Many neighborhoods are within half a mile of bus stops, eliminating the parking requirement for your ADU.
Local Permitting
West Covina processes ADU permits through LA County’s Department of Regional Planning since it contracts building and safety services with the county. The 60-day state-mandated review timeline applies.
Neighborhoods We Serve
We design ADUs throughout West Covina including South Hills, Cameron Park, Galster Park area, West Covina Parkway corridor, and the neighborhoods near Cortez Park.
Ready to build an ADU in West Covina? Contact us for a free feasibility report — we’ll evaluate your property and show you what’s possible. 213) 306-5601






