Service Areas
ADU builders for the Sacramento Valley and Bay Area
Serving the greater Sacramento Valley and the San Francisco Bay Area, including all East Bay communities. ADU Design Center is based in Sacramento. Each city has its own permit office, fees and lot patterns. Find your city below for local rules and considerations, or call 916.505.2036.
Which cities do you build ADUs in?
Sacramento Valley
Our Sacramento home base and the surrounding valley and foothill communities. City limits determine whether your permit goes to a city or county office.
ADU builder in Sacramento
City of Sacramento Community Development Department
Sacramento is where we live and build. The city has been one of the more ADU-friendly jurisdictions in California, and its older neighborhoods have lot patterns that suit backyard homes well.
Sacramento ADU detailsADU builder in Elk Grove
City of Elk Grove Development Services
Elk Grove grew quickly over the last few decades, so most homes are in planned subdivisions. That consistency helps: once we know a subdivision's lot pattern and utilities, planning is predictable.
Elk Grove ADU detailsADU builder in Folsom
City of Folsom Community Development Department
Folsom has a mix of established neighborhoods near Historic Folsom, larger lots in older subdivisions and newer planned communities south of Highway 50. Each calls for a different ADU strategy.
Folsom ADU detailsADU builder in Roseville
City of Roseville Development Services
Roseville is in Placer County and runs several of its own utilities, which shapes how an ADU gets connected. We plan that coordination into the schedule from the start.
Roseville ADU detailsADU builder in Rocklin
City of Rocklin Community Development Department
Rocklin sits on the edge of the Sierra foothills, and the ground tells you so. Rock, slope and drainage are real design factors for a backyard unit.
Rocklin ADU detailsADU builder in Rancho Cordova
City of Rancho Cordova Building and Safety
Rancho Cordova combines older ranch-home neighborhoods with fast-growing new communities. Both can work for an ADU, in different ways.
Rancho Cordova ADU detailsADU builder in Citrus Heights
City of Citrus Heights Community Development Department
Citrus Heights is largely built out with established neighborhoods, which makes it a practical place to add a unit to an existing lot.
Citrus Heights ADU detailsADU builder in El Dorado Hills
El Dorado County Planning and Building Department
El Dorado Hills homes often sit on larger hillside lots with views. That brings space for a backyard home, and a few extra design steps.
El Dorado Hills ADU detailsADU builder in Davis
City of Davis Community Development and Sustainability Department
Davis is in Yolo County, a short drive from Sacramento, and its steady rental demand makes ADUs a practical way to add value to a property.
Davis ADU detailsNatomas
Carmichael
Fair Oaks
Orangevale
Lincoln
East Bay
From the bayshore to the inland valleys, we plan around each property's access, terrain, utilities and permitting authority.
ADU builder in Oakland
City of Oakland Planning & Building Department
Oakland spans compact flatland blocks and steep hillside streets. The best ADU approach starts with access and the existing house, not a floor plan picked before the lot is measured.
Oakland ADU detailsADU builder in Berkeley
City of Berkeley Planning and Development Department
Berkeley’s older residential blocks and hillside homes call for different ADU strategies. A conversion near the flatlands may have very different access and engineering needs from a new cottage above the city.
Berkeley ADU detailsAlameda
San Leandro
ADU builder in Hayward
City of Hayward Development Services Department
Hayward stretches from low-lying bayside neighborhoods to the East Bay hills. For an ADU, the difference matters: drainage, access and utility routing should be settled before the layout is finalized.
Hayward ADU detailsADU builder in Fremont
City of Fremont Community Development Department, Planning Division
Fremont’s distinct neighborhoods range from the established streets of Niles to Mission San Jose hillside settings and newer planned communities. We match the unit to the neighborhood’s lot pattern and your household’s needs.
Fremont ADU detailsUnion City
Newark
Castro Valley
Dublin
ADU builder in Pleasanton
City of Pleasanton Community & Economic Development Department, Planning Division
Pleasanton’s downtown homes and larger suburban neighborhoods need different ADU layouts. We begin with the existing architecture and available outdoor space, then confirm the parcel’s planning context.
Pleasanton ADU detailsADU builder in Livermore
City of Livermore Community Development Department, Planning Division and Building
Livermore’s downtown residential blocks, suburban lots and vineyard-edge surroundings offer distinct possibilities for a second home. We confirm jurisdiction and site conditions before turning those possibilities into plans.
Livermore ADU detailsADU builder in San Ramon
City of San Ramon Community Development Department, Planning Services Division
San Ramon combines established valley neighborhoods with planned communities such as Dougherty Valley. We compare backyard space, garage options and community documents before selecting an ADU design.
San Ramon ADU detailsDanville
ADU builder in Walnut Creek
City of Walnut Creek Community Development Department
A Walnut Creek mailing address is not enough to identify the permit office. We first confirm city or county jurisdiction, then evaluate the yard, slope and existing home for a practical ADU layout.
Walnut Creek ADU detailsLafayette
Orinda
Moraga
ADU builder in Concord
City of Concord Community Development Department, Planning Division
Concord’s established inland neighborhoods offer a range of garage and backyard configurations. We compare reuse of an existing structure with new construction and check the site against the city’s ADU guidance.
Concord ADU detailsPleasant Hill
Martinez
Pittsburg
Antioch
Brentwood
ADU builder in Richmond
City of Richmond Community Development Department
Richmond includes established flatland neighborhoods, Point Richmond’s varied terrain and hillside settings toward El Sobrante. We check the parcel boundary and usable building area before recommending an ADU type.
Richmond ADU detailsEl Cerrito
Albany
Hercules
Pinole
Greater San Francisco Bay Area
Serving San Francisco, the Peninsula, the South Bay and Marin County. Call to discuss your property and its local permit process.
San Francisco
San Jose
Palo Alto
Redwood City
San Mateo
Daly City
Santa Clara
Sunnyvale
Mountain View
San Rafael
Mill Valley
Do you serve areas not listed here?
Serving the greater Sacramento Valley and the San Francisco Bay Area, including all East Bay communities. Carmichael, Fair Oaks and Orangevale are unincorporated and permitted through Sacramento County. Natomas is part of the City of Sacramento. Castro Valley is unincorporated and falls under Alameda County rather than a city permit office. We confirm the jurisdiction for your address before preparing plans.
Why does the permitting authority matter?
The city or county that issues your permit sets fees, plan check timelines and some design rules. A Sacramento mailing address does not always mean City of Sacramento jurisdiction. We confirm yours on the first call, then manage the whole process. See how our process works.
Free quote
Tell us about your property. We will call you shortly.
Call us for a quote based on your project.
Call us directly
916.505.2036ADU Design Center2230 26th Street, Sacramento, CA 95818Call to schedule your visit.
Request a free quote
Takes about a minute. We call you back, usually the same business day.