ADU builder in the Bay Area.

Yes. GM Ironwood is based in Oakland, at 1824 79th Ave, and works across the San Francisco Bay Area, Contra Costa County and the Tri-Valley, plus the North Bay and the South Bay. The full list of cities is on our service areas page. Not sure about your city? Call (510) 479-2809 and ask.

Yes. After the site visit you get a written bid, itemized line by line, before any work starts. Each line is one part of the job with its own price, so you can see where every dollar goes and decide what to include. One client wrote that the bid was detailed and itemized.

Yes. GM Ironwood Construction Inc. holds California contractor license CSLB #1125088 as a Class B general building contractor. The company is bonded and carries general liability insurance. You can check the license at any time on the Contractors State License Board website, cslb.ca.gov, using that number.

Yes, if you want us to. We can prepare and submit the permit package and schedule inspections, or you can handle permits yourself. Either way, the city inspects the work at each stage, and each inspection has to pass before the job moves on to the next step.

No. You can use our architect and structural engineer, or bring your own plans. Plans and permits can be part of our contract or separate. If you use our team, the same plans the city approves are the ones our crew builds from, so the design and the work match.

Yes. Each Bay Area city has its own building department, its own forms and its own local requirements, and some areas outside city limits are handled by the county. Before we write your bid, we check the rules that apply to your address, so the price already reflects what your city will ask for.

It depends on the size of the project and the city. We give you an estimate for your address with the bid. Plan review can take more than one round when the city sends comments on the plans, and larger projects usually need more review time.

Yes. GM Ironwood builds residential and commercial projects, including commercial renovations. The process is the same: a site visit, a written bid itemized line by line, city permits pulled by GM Ironwood, and plans with our architects and engineers when the work needs them. Call (510) 479-2809 to talk about your project.

Yes. GM Ironwood builds complete units, from the first site visit to the final walk-through with you. The ADU in the photos on this page has its own kitchen, bedrooms with closets, a bathroom and a laundry area, with wood-look vinyl floors throughout, all built by the same crew.

It depends on the size of the unit, the design and how long your city takes to approve the permits. After the site visit, GM Ironwood gives you a written bid with the price and the schedule, so you know the timeline before any work starts on your lot.