ADUs & additions
Whether it's an ADU for family or rental income, or an addition that finally gives your home the space it needs, expansions live or die on how well they integrate — architecturally, structurally, and with your city's permit process. We know the East Bay's ADU rules and build additions that look like they were always there.
what's included
- feasibility, design & permitting
- foundations & framing
- full building systems — electrical, plumbing, HVAC
- interior finish-out
- seamless matching to your existing home
**project costs vary by size, scope, details, and myriad other factors — these are rough numbers for current remodeling costs in the area. we're happy to provide a customized estimate for your specific project.
common questions
How much does an ADU cost to build in the East Bay?
ADUs in the East Bay typically run $400–500 per square foot, with most projects starting around $200k+. We can advise on what your lot allows and provide a customized estimate.
Do you handle ADU permits and city approvals?
Yes — we manage feasibility, design, and permitting end to end. California's ADU laws have made approvals much friendlier, and we know the local processes in Orinda, Lafayette, Walnut Creek, Oakland, Berkeley, and surrounding cities.
What can I use an ADU for?
Common uses are rental income, housing for family or aging parents, a home office or studio, and long-term property value. We'll design around how you actually plan to use it.
