Atherton
Custom new home construction and luxury whole-home remodels in Atherton, built to navigate the town's strict permitting standards.
Service area
Bay Area General Contractor Serving the Peninsula & South Bay
CoGeneral Construction is a licensed Bay Area general contractor building new homes, ADUs, room additions, and full kitchen and bathroom remodels across San Mateo County and Santa Clara County. We serve more than 20 cities on the Peninsula and in the South Bay — handling permits, inspections, and city-specific requirements from start to finish.
Call to discuss your project: (650) 737-2354
Featured cities
Dedicated City Pages
Where we work
Our Bay Area Service Map
Tap a pin or drag the map to explore.
San Mateo County
We work with homeowners throughout the San Mateo County Peninsula — from Daly City down through the mid-Peninsula to Atherton — on new construction, ADUs, and full-scope remodels.
- Atherton
- Menlo Park
- Redwood City
- San Carlos
- Belmont
- Foster City
- Burlingame
- Millbrae
- San Mateo
- San Bruno
- Pacifica
- South San Francisco
- Daly City
Santa Clara County
Across Santa Clara County we build in Palo Alto, the Los Altos hills, the Mountain View / Sunnyvale tech corridor, Cupertino, and throughout San Jose's neighborhoods.
- Palo Alto
- Los Altos
- Mountain View
- Sunnyvale
- Cupertino
- Santa Clara
- Campbell
- Los Gatos
- San Jose
City by city
What We Build in Each City
Local knowledge of each city's permitting, inspections, and neighborhood character.
Menlo Park
ADUs, room additions, and kitchen remodels in Menlo Park — from Allied Arts to West Menlo — coordinated with the City of Menlo Park Building Division.
Redwood City
New construction, ADUs, and full home renovations across Redwood City neighborhoods including Mt. Carmel, Emerald Hills, and Farm Hill.
San Carlos
Hillside additions, second-story expansions, and modern kitchen remodels for San Carlos homeowners on the Peninsula.
Belmont
Foundation work, additions, and bathroom remodels in Belmont's hillside lots — built for the challenges of sloped sites.
Foster City
Bayfront home remodels, kitchen renovations, and ADUs in Foster City built to Bay Area waterfront construction standards.
Burlingame
Historic home remodels, additions, and kitchen renovations in Burlingame and Burlingame Hills — sensitive to neighborhood character.
Millbrae
Whole-home remodels, ADUs, and additions for Millbrae homeowners, with permits processed through the City of Millbrae.
San Mateo
ADUs, JADUs, room additions, and kitchen and bathroom remodels across San Mateo — Hayward Park, Hillsdale, Aragon, and Baywood.
San Bruno
Kitchen remodels, bathroom renovations, and ADUs in San Bruno's Crestmoor, Rollingwood, and Portola Highlands neighborhoods.
Pacifica
Coastal remodels, additions, and ADUs in Pacifica — built for the unique conditions of homes along the San Mateo coast.
South San Francisco
Full home renovations, ADUs, and additions across South San Francisco, from Sunshine Gardens to Sign Hill.
Daly City
ADUs, JADUs, and modern kitchen and bathroom remodels for Daly City homeowners across Westlake, Serramonte, and Mission Hills.
Palo Alto
ADU and JADU construction, full kitchen remodels, and second-story additions in Palo Alto — coordinated with the Palo Alto Planning & Development Services Department.
Los Altos
Luxury new home construction, custom kitchens, and primary suite additions across Los Altos and Country Club neighborhoods.
Mountain View
ADUs, additions, and kitchen and bath remodels in Mountain View — Old Mountain View, Cuesta Park, and Waverly Park.
Sunnyvale
Full home renovations, ADUs, and additions for Sunnyvale homeowners, with permits handled through the One-Stop Permit Center.
Cupertino
Custom kitchen remodels, room additions, and ADUs throughout Cupertino — Monta Vista, Rancho Rinconada, and Linda Vista.
Santa Clara
Whole-home remodels, additions, and ADUs across Santa Clara, processed through the Santa Clara Permit Center.
Campbell
Kitchen and bathroom remodels, additions, and ADUs in Campbell — including downtown and the San Tomas neighborhoods.
Los Gatos
Hillside additions, custom kitchens, and luxury remodels in Los Gatos and the surrounding Santa Cruz Mountain foothills.
San Jose
ADUs, JADUs, full home renovations, and additions across San Jose — Willow Glen, Almaden Valley, Cambrian, Rose Garden, and Evergreen.
Services We Offer in Every City We Serve
Whether you're in Palo Alto, San Jose, or anywhere on the Peninsula, we offer the same full scope of general contracting services.
- New home construction
- ADU and JADU construction
- Room and second-story additions
- Full kitchen remodels
- Full bathroom remodels
- Whole-home renovations
Why a Local Bay Area Contractor Matters
Every Bay Area city has its own building department, plan-check process, ADU ordinance, and inspection style. Palo Alto's Planning & Development Services, the San Mateo Building Division, the Sunnyvale One-Stop Permit Center, and San Jose's Department of Planning, Building & Code Enforcement each operate differently — and small mistakes on a submittal can add weeks or months to a project.
Because we work in these cities week in and week out, we know what each jurisdiction expects on plans, structural calculations, Title 24 energy compliance, and final inspections. That experience keeps projects on schedule and protects the budget homeowners signed up for.
Location FAQ
Questions About Our Service Area
What cities does CoGeneral Construction serve?+
We serve 20+ cities across the San Francisco Peninsula and South Bay, including Palo Alto, Los Altos, Menlo Park, Atherton, Mountain View, Sunnyvale, Cupertino, Santa Clara, San Jose, Campbell, Los Gatos, Redwood City, San Carlos, Belmont, Foster City, Burlingame, Millbrae, San Mateo, San Bruno, Pacifica, South San Francisco, and Daly City.
Which counties do you work in?+
CoGeneral Construction works primarily in San Mateo County and Santa Clara County. We regularly take on projects throughout the Peninsula and South Bay.
Do you handle permits in each city?+
Yes. We handle the full permit process for every city we serve — including plan submittals, planning review, building permits, and inspections — so homeowners don't have to coordinate with city departments themselves.
Do you build ADUs across the Bay Area?+
Yes. ADUs and JADUs are one of our specialties. We build detached ADUs, attached ADUs, garage conversions, and JADUs in every city we serve, following each city's specific ADU ordinance and California state ADU law.
How far will you travel for a project?+
Our core service area covers San Mateo and Santa Clara counties, but we take on select projects across the broader Bay Area. If you don't see your city listed, call us at (650) 737-2354 — we likely cover it.
What types of projects do you build in these cities?+
New home construction, ADUs and JADUs, room and second-story additions, full kitchen remodels, full bathroom remodels, and whole-home renovations.
Don't see your city?
We cover most of the Bay Area. Give us a call and we'll let you know if your project is a fit.