Additions and Remodels Cost in Campbell, CA in 2026
Most Additions and Remodels projects in Campbell, CA cost between $60,000 and $275,000. The typical price is $130,000.
Labour and materials in Campbell run about 22% 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 Campbell, CA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $150 |
| Mid-range | $320 |
| High-end | $690 |
Home addition and remodeling contractors in Campbell, CA
Businesses listed on Google near Campbell, CA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
US CREATIVE BUILDERS
4.9(64 reviews)
2175 S Bascom Ave, Campbell, CA 95008
Casa Utopia Builders
5.0(53 reviews)
1600 W Campbell Ave Ste 102, Campbell, CA 95008
Cotfort Residential Remodeling
5.0(52 reviews)
565 W Hacienda Ave, Campbell, CA 95008
Acton ADU
5.0(44 reviews)
1257 Dell Ave, Campbell, CA 95008
Bay Area Design & Construction
4.8(40 reviews)
152 Kennedy Ave Ste B, Campbell, CA 95008
1st Choice Builders Los Gatos - Home Addition, Kitchen & Bathroom Remodeling Contractors
5.0(29 reviews)
21446 Broadway Rd, Los Gatos, CA 95033