Boxabl Garage Conversion Contractor in Orange County: What to Know First
We convert Boxabl homes into attached or detached garage conversions across Orange County, typically completing a standard garage-to-living-space build in 6 to 10 weeks once permits clear. As an independent Boxabl service provider, we are not affiliated with or authorized by Boxabl; we’re a local Orange County ADU and garage conversion contractor that works on Boxabl structures regularly. You’ll get a written price before any work starts, and every project carries our 365-Day Done Right Promise in writing. This page is for Boxabl owners in Orange County who need a garage conversion contractor and want straight answers on process, cost, and what can go wrong. Call (350) 203-6060 to talk through your project.

How Boxabl Products Fail – and How We Fix Them
Boxabl builds a tight, factory-made shell, but a garage conversion puts new stress on that shell. Here are the failure points we see most in Orange County.
- Casita shell-to-foundation movement at the marriage line. Boxabl’s Casita folds open and locks together at the center seam. On Orange County lots with expansive clay soil, minor ground movement can open a hairline gap at that seam. Symptoms: visible crack line across the ceiling center, dampness at the fold joint after rain, or a door that starts rubbing. We re-level the unit, re-secure the marriage plates, and seal the joint before running any interior framing.
- HVAC condensate pooling against the garage slab edge. The Casita’s HVAC condensate line exits low on the exterior wall. When a Boxabl unit is placed tight against an existing garage or carport slab, that line gets buried or kinked, and water backs up into the floor assembly. In Anaheim Hills and Yorba Linda, where we do a lot of Boxabl conversions, we regularly see this. Our fix is re-routing the drain line with proper slope and adding a secondary overflow switch, then testing through a full cooling cycle.
- Interior panel deflection when wall-mounting cabinetry or shelving. Boxabl walls are laminated panels, not stud-framed cavities. Hanging a heavy upper cabinet or a wall-mounted TV directly on a single panel can bow the wall or pop the interior laminate. We use plywood backer blocks secured at the panel seams and the floor line so the load distributes properly. This matters because a garage conversion leans hard on wall storage.
- Roof membrane penetrations from venting retrofits. Converting a Boxabl from storage use to living space means adding plumbing vents, a bath fan, and sometimes a range hood. Each penetration through the roof membrane is a leak risk if not flashed correctly. Boxabl’s roof system uses a PVC-style membrane, and we flash every penetration with compatible tape and boots, not generic roof cement, which will fail on that membrane within a couple of Orange County seasons.
- Undersized electrical panel for conversion loads. The base Casita panel is set up for modest factory loads. Adding a kitchenette, minisplit, or electric water heater for a garage conversion can overload it. Before touching drywall, we run a load calculation on the existing panel and the planned circuits. Where the panel is too small, we install a subpanel and run the new circuits from it, rather than doubling up breakers and hoping for the best.
Our Boxabl Garage Conversion Contractor Process
Every Boxabl conversion we run in Orange County follows the same sequence. It keeps the price honest and the build clean.
- 1
Site walk and measurement. We come out, look at the Boxabl unit, the existing slab or foundation, the electrical service, and the space around the unit. Russ Delmar or a lead tech is on every first visit.
- 2
Written scope and price. You get a line-item breakdown of what we’ll do, what materials we’ll use, and what it costs. That number does not change unless you change the scope. No change orders at the door.
- 3
Permit drawings and submittal. We draw the conversion plans and handle the Orange County permit submittal. Garage conversions to living space need a permit and an inspection, full stop. Skipping permits saves money now and costs more when you sell.
- 4
Build-out. We frame interior walls, rough in plumbing and electrical, insulate, hang drywall, and finish out. On Boxabl jobs we work carefully around the existing panel seams and roof penetrations so the factory shell stays intact.
- 5
Inspection and walkthrough. We meet the inspector on site, pass the final, then walk the finished conversion with you. Any punch-list item goes on a list, and we schedule the fix.
- 6
Written guarantee. You get our 365-Day Done Right Promise in writing before you owe us a final check. If something isn’t right within a year, we come back and make it right, free.
What Boxabl Garage Conversion Contractor Costs in Orange County

Garage conversion pricing in Orange County runs on a wide span because permits, existing utility runs, and finish level all move the number. For a Boxabl garage conversion, here are the honest ranges we quote most often:
| Scope | Typical Range |
|---|---|
| Basic garage-to-bedroom conversion on existing slab | $40,000 – $70,000 |
| Full garage ADU with kitchenette and bath | $80,000 – $140,000 |
| Detached Boxabl Casita conversion to living space | $55,000 – $95,000 |
| Electrical panel upgrade and subpanel addition | $4,500 – $8,500 |
| Permit drawings, fees, and inspections | $3,000 – $7,000 |
What moves the price: the condition of the slab, how far the sewer and water lines have to run, whether you want a full kitchen or a kitchenette, and the finish level on cabinets and flooring. Call (350) 203-6060 for a free estimate with real numbers.
Why Orange County Homeowners Call Lodgewick ADU Orange County for Boxabl Work
Russ Delmar runs Lodgewick ADU Orange County, and he runs crews the way he’d want a crew on his own property: written price first, real arrival window, clean job site, and a written guarantee on every project. It’s what we call The Kingswell Way. Our techs are background-checked and uniformed, so you always know who’s walking your property. A live person answers our phones around the clock. And because we work across multiple prefab lines, we can give you an honest comparison when a Boxabl conversion doesn’t pencil out and an Abodu, Cover, or Dvele unit is the better call for your lot. Orange County homeowners have been burned before by contractors who disappear. We stay reachable.
FAQs

It depends on the specific warranty language and what you modify. Structural changes to the Boxabl shell can void portions of the factory warranty. We keep our conversion work inside the shell wherever possible and document everything so you have a clear record. Call (350) 203-6060 and we’ll walk through what your conversion would touch and what that means for your coverage.
Most Boxabl garage conversions in Orange County take 6 to 10 weeks after permits are issued. Permit review itself typically runs 4 to 8 weeks depending on the city. We give you a written timeline with your written price, and we hold to it. Call (350) 203-6060 to get a schedule for your specific project.
Yes, a detached Boxabl Casita can be converted into a legal garage apartment or ADU in most Orange County cities, assuming the lot zoning allows for a detached accessory dwelling unit. The California ADU rules are favorable to this kind of conversion. We handle the zoning check, the drawings, and the build. Call (350) 203-6060 to find out if your lot qualifies.
Yes. In Orange County, converting a garage to a bedroom requires a building permit, and if you’re adding a bathroom or kitchen, you’ll need plumbing and electrical permits too. We pull all permits and meet all inspections. Skipping this step risks a stop-work order and a mess when you sell. Call (350) 203-6060 and we’ll check your city’s requirements.
Every job we do carries our 365-Day Done Right Promise in writing. If the work fails within a year, we come back and make it right, free. That’s the entire point of the guarantee. Call (350) 203-6060 and a live person will answer, day or night.
Written by Russ Delmar, Owner, Lodgewick ADU Orange County at Lodgewick ADU Orange County, serving Orange County and nearby areas.


