A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Oakland
Garage conversion in Oakland typically costs $120,000 to $220,000 for a full ADU with kitchen and bath, and most projects take 4 to 7 months from permit to final inspection. The single biggest cost driver here is what’s hiding behind the walls of a 1900-1930 garage: knob-and-tube wiring, undersized framing, or an unreinforced masonry foundation that needs seismic bolting. If you live in Fruitvale, Laurel, Dimond, or anywhere in the Oakland flatlands or hills, call us at (707) 760-0502 for a free estimate and a written price before any work starts.
Why Lodgewick ADU San Francisco Is Oakland’s Preferred Garage Conversion Contractor Company
Oakland homeowners call us because we put every commitment in writing before a single nail is driven. That’s The Kingswell Guarantee: a written price, a defined arrival window, a clean job site, and a written 365-Day Done Right Promise on every project. Russ Delmar leads our Bay Area team, and he insists on that standard because he’s seen too many Oakland families get burned by contractors who show up late, change the price at the door, or vanish when a problem appears months later.
We know the difference between a Rockridge Craftsman and a Fruitvale bungalow built on an old in-law foundation. Our crews work Oakland neighborhoods every week, so when your garage walls come open and the framing isn’t what anyone expected, we’re not surprised. We price allowances into the contract for exactly that scenario, and any change is approved by you in writing before we touch it. Call (707) 760-0502 and a live person answers. Not a voicemail. Not a chatbot.
Garage Conversion ADU in Oakland
A Garage Conversion ADU in Oakland typically runs $130,000 to $220,000 depending on whether you’re converting an attached garage in the flatlands or a detached garage in the hills, plus the cost of seismic upgrades, rewiring, and plumbing runs. This is the most common option for Oakland homeowners who have a single-car or tandem garage sitting empty and want a legal rental unit or a private space for family.
Attached Garage Conversion
An attached garage conversion in an Oakland bungalow usually costs $115,000 to $180,000. The build is faster because plumbing and electrical are already close, but you’ll likely trigger a full panel upgrade if the home still has a 60-amp service from the 1920s or 1930s. We verify that during inspection and put the allowance in writing.
Detached Garage Conversion
Detached garage conversions in Oakland’s Laurel, Maxwell Park, and East Oakland neighborhoods typically land between $150,000 and $220,000. The big swing factor is the foundation: if we can reuse an original 1920s concrete pad, you save $8,000 to $15,000 on new concrete work. If not, expect seismic bolting and a new reinforced slab.
Garage Apartment Conversion in Oakland
A Garage Apartment Conversion in Oakland usually costs $140,000 to $235,000 when it includes a full kitchen, separate entrance, and its own meter. Many Oakland homeowners build these as long-term rentals or multi-generational spaces, especially in neighborhoods where rental demand is strong and lots are long and narrow.
Garage to Bedroom Conversion
A garage to bedroom conversion without a full kitchen runs $90,000 to $140,000 in Oakland. You’ll still need seismic upgrades and electrical replacement if the garage is pre-1940s, but you avoid the higher plumbing and kitchen scope. This is a practical option for families who need space now and want to phase a full ADU later.
Garage to Living Space
Converting a garage to living space in Oakland averages $100,000 to $160,000. The permit triggers current Title 24 energy requirements, which for older garages means insulation, a new electrical subpanel, and often new windows. We walk you through each line item before the contract is signed so you know what you’re paying for and why.
Trusted Brands We Service in Oakland
We work with materials and prefab systems that hold up to Oakland’s marine air and seismic requirements: James Hardie siding for fog-resistant exterior cladding, Plant Prefab for panelized ADU kits that speed up framing, and Tuff Shed for storage and workshop conversions. Because we coordinate these materials for Oakland projects weekly, turnaround on orders and permits is faster than trying to source everything yourself. We don’t push a single system. We match what fits your lot, your foundation, and your budget.
Common Garage Conversion Contractor Problems We See in Oakland Homes
- Knob-and-tube wiring hidden behind lath and plaster. Most 1920s Oakland garages still have it, and once we open walls for new electrical, the inspector will require full replacement. We test for this before quoting so the number in your contract is real.
- Unreinforced masonry foundations on flatlands lots. A pre-1940s garage often sits on a brick or stone foundation with no rebar and no bolting. Oakland’s Hayward Fault proximity means the permit will require shear walls and foundation bolting. Skipping this is dangerous and illegal.
- Forgotten 1920s in-law foundations that appear mid-project. In Fruitvale and East Oakland, we regularly uncover old concrete pads from demolished in-law units. If they’re intact, we can legally reuse them and save you thousands on new concrete. If they’re cracked, we remove them and pour new.
- Quotes that leave out hidden-condition allowances. Contractors who price a garage conversion as a simple finish job will hit you with change orders the moment dry rot or undersized framing shows up. Our written price includes named allowances for those conditions, and anything beyond them requires your written approval first.
Pricing for Garage Conversion Contractor in Oakland, CA
Here’s what homeowners should expect in Oakland’s current market. A garage to bedroom conversion runs $90,000 to $140,000. A full garage conversion ADU with kitchen and bath runs $130,000 to $220,000. A detached garage apartment conversion runs $140,000 to $235,000. The three factors that move your number most: whether the foundation can be reused, whether the electrical service needs a full panel upgrade, and whether the garage is attached or detached. We give you a written line-item price after one site visit, and that price holds. Call (707) 760-0502 to schedule your free estimate.
We Also Serve Cities Near Oakland
Our crews regularly work in Emeryville, San Leandro, Moraga, and Orinda. If your project sits near the Oakland border, we’ll coordinate permitting across city lines so the schedule stays simple. See our Garage Conversion Contractor page for service details and our Garage Conversion Contractor in Oakland page for neighborhood-specific coverage.
Serving Oakland, CA - Our Local Coverage Area
We’re based in the Oakland area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Garage Conversion Contractor in Oakland
Oakland’s local ordinance allows ADUs, including garage conversions, on any lot with an existing single-family home, regardless of underlying zoning restrictions. That’s a meaningful difference from nearby cities, and it’s why so many older Oakland properties qualify. Call (707) 760-0502 and we’ll verify your specific parcel during the free estimate.
We inspect for knob-and-tube before quoting, and we price the replacement as a named allowance in the written contract, not as a surprise later. Once walls are open, the inspector will require current-code wiring anyway, so knowing about it upfront protects your budget. Call (707) 760-0502 to get a real number in writing.
Yes, if a structural engineer confirms the pad is sound and meets current code requirements. In Fruitvale, our team converted a 1923 detached garage and reused an intact original concrete pad from a demolished in-law unit, which saved the homeowner roughly $12,000 in new concrete work. We’ll assess the pad during the estimate and tell you honestly whether reuse is possible.
Oakland requires shear walls, foundation bolting, and a structural engineer’s sign-off for detached ADUs in most of the city, with stricter requirements closer to the fault. We handle the engineering, permit drawings, and inspection coordination as part of the project. Call (707) 760-0502 to learn what your specific property needs.
We price those conditions as named allowances in the contract before we start, with defined line items for framing reinforcement, dry-rot repair, and waterproofing replacement. If we find something outside the allowance, you approve the new price in writing before we proceed. Call (707) 760-0502 for a free estimate that accounts for what’s actually behind your walls.
Schedule Your Free Estimate in Oakland
You shouldn’t have to call three contractors just to get a ballpark number. Call Lodgewick ADU San Francisco at (707) 760-0502 and Russ Delmar or a member of our Oakland crew will walk through your garage, talk about what’s behind the walls, and hand you a written price with the allowances already in it. No pressure, no vague estimates, no price changes at the door. That’s The Kingswell Way, and it’s in writing on every project we do in Oakland.
Written by Russ Delmar, Owner at Lodgewick ADU San Francisco, serving Oakland and the East Bay.
