Our ADU Construction Process — Step by Step
IronNest Construction — CSLB #1130134. Licensed general contractor serving San Francisco, the Bay Area, and Sacramento.
How We Handle Every ADU Construction Project
Every project follows the same structured process — no shortcuts, no surprises, and a clear point of contact throughout.
Feasibility Review
We assess your lot, setbacks, existing structure, utility connections, and zoning rules. We tell you what's buildable before you spend money on design.
Design & Plans
We develop construction documents for permit submittal. Floor plan, elevations, sections, and all required engineering.
Permit Submittal & Approval
We submit to the building department, manage plan check comments, and obtain approved permits. This typically takes 4–12 weeks depending on jurisdiction.
Construction
Foundation, framing, MEP rough-in, insulation, drywall, finish. We coordinate all trades and keep you updated weekly.
Final Inspection & Handoff
City final inspection, utility connections, and punch list completion. You get the keys to a fully permitted, livable unit.
Ready to start your project? The process begins with a free estimate visit. No commitment required — just straight answers about your project.
Schedule a Free EstimateReady to Get Started on Your ADU Construction Project?
Free estimates, fixed-price contracts, and work that passes inspection. We serve San Francisco, Oakland, San Jose, Sacramento, and 60+ Bay Area cities.