Fontana ADU Builder designs and builds ADUs, additions, and custom homes in San Bernardino, CA, from our Fontana base nearby. San Bernardino is the county seat and one of the region's largest and oldest cities, with a broad range of neighborhoods, home ages, and lot types, and we design every project around the realities of the specific lot rather than a stock plan. From the first design conversation through permits, framing, and the full build, one accountable crew owns the project.
Building in San Bernardino means working with the local conditions, not against them. We plan for the access, the lot, the setbacks, and the way you want to use the new space, then handle the plans and permits so the build moves smoothly. The result is an ADU or addition that fits the home, the lot, and the way you live.
ADUs and additions designed for San Bernardino homes
Homes in San Bernardino have their own character and their own constraints, and the best project is the one designed around them. We start with a real look at your lot: the access for equipment, the grade, the setbacks, and how the new space should relate to the existing home. With such a wide range of neighborhoods across the city, from older established blocks to newer development at the edges, the design has to start from what your specific property actually offers.
Plenty of San Bernardino lots leave room for a detached unit when the access works, and many older homes are well-suited to additions and renovations that bring them up to date. We design for how you will actually use the space, whether that is a rental, a family suite, or more room in the main house, and you see the plan before we break ground.
Because we build what we design, the plan we hand you is one we know we can build in San Bernardino without expensive surprises. Designing with the real constraints in mind from the start keeps the project moving and the budget honest.
How a San Bernardino build goes
A build in San Bernardino follows the same careful sequence as any of ours. It opens with a design consultation and a walk of the property, then a real plan and a written price. Once you approve the design, we coordinate the engineering, draw the permit set, and submit to the city.
After that the home progresses through the foundation, the framing, the rough systems, insulation and drywall, and the finishes. Because each phase depends on the last, one crew owning the full sequence keeps the project moving steadily rather than stalling between separate trades.
The build closes with the final inspections and a walk-through that confirms everything works as it should. We keep you posted at each stage so the project is never a black box.
A nearby crew that follows through on every build
Fontana ADU Builder is a licensed and insured design-build company, and we serve San Bernardino as part of our regular Fontana-area work. You are dealing with the crew that actually designs and builds the project, not a broker handing your job to whoever bids lowest. We are close by for the warranty, the questions, and the next project.
We put the design and the price in writing from the outset, handle the plans and permits, and build every phase to last. The majority of our work comes from neighbors who recommend us to neighbors, which is the reputation we set out to earn.
If you are planning an ADU, an addition, or a renovation in San Bernardino, call 949-267-7957 for a free design consultation and an honest, written plan.
Our San Bernardino coverage
Whatever your San Bernardino project needs, one crew handles it: custom carpentry, a custom build, a design-build project, a room addition, managing your project, a whole-home renovation. We carry every job from the first design consult through the work to a documented walk-through.
We serve San Bernardino alongside nearby home building in Rialto, Bloomington, CA, building work in Jurupa Valley, Colton, CA, and the rest of the Fontana area. Your custom home builders near me search just landed on a real home builder. Browse the home page or ring 949-267-7957 to get started.