Additions and Remodels Cost in Downey, CA in 2026
Most Additions and Remodels projects in Downey, CA cost between $61,000 and $280,000. The typical price is $130,000.
Labour and materials in Downey run about 24% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Whether the addition needs its own foundation and roof tie-in
- Adding a bathroom or kitchen (plumbing and electrical runs)
- Structural work to the existing wall being opened up
- Local permit and inspection requirements
Usually included
- Framing, roofing and siding to match
- Electrical rough-in and finish
- Insulation, drywall and paint
- Flooring and trim
Usually extra
- Permits and architectural drawings
- Site work or tree removal
- High-end fixtures and appliances
Unit prices in Downey, CA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $150 |
| Mid-range | $325 |
| High-end | $700 |
Home addition and remodeling contractors in Downey, CA
Businesses listed on Google near Downey, CA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Family Home Improvements
4.9(156 reviews)
12211 Front St, Norwalk, CA 90650
Cornejos Builders ADU Construction & Home Building
4.7(38 reviews)
8909 Elmont Ave, Downey, CA 90240
American Pride Builders Co.
4.7(35 reviews)
3725 Firestone Blvd c, South Gate, CA 90280
Domus Design Build
5.0(28 reviews)
8041 Florence Ave Ste 208, Downey, CA 90240
Latin Construction Group Inc
5.0(23 reviews)
8548 Cleta St, Downey, CA 90241
RS Construction
5.0(20 reviews)
6052 Buell St, Bell Gardens, CA 90201