







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 Home Gardens
Converting a garage into livable space in Home Gardens runs $95,000 to $210,000 for a full permitted ADU with kitchen and bath, and $40,000 to $75,000 for a simpler bedroom-and-bath conversion without plumbing for a kitchen. Most Home Gardens projects take 10 to 16 weeks from permit submission to final inspection, though the unincorporated Riverside County review process can stretch that timeline if septic is involved. We schedule a walkthrough and written line-item price before any work starts, so you know the real number before you commit. Call (831) 292-4191 to set that up.
We’re Lodgewick ADU Riverside, the ADU company of the Kingswell family. Our Garage Conversion Contractor crews know Home Gardens block by block because we work here every week. Russ Delmar leads our team, and every Home Gardens project runs under The Kingswell Guarantee: a written price first, a real arrival window, a clean job site, and a written guarantee on the finished work.
Why Lodgewick ADU Riverside Is Home Gardens’s Preferred Garage Conversion Contractor Company

Home Gardens homeowners have told us the same story for years: a contractor quoted one number, opened the walls, and suddenly the price jumped. That’s why we built our process differently, and it’s why Russ Delmar insists every Home Gardens job starts with a written price and a written guarantee. No price changes at the door, no vague handshake promises.
We know what’s behind the stucco on these 1950s and 60s ranch homes. We know the septic constraints that come with an unincorporated Riverside County address. We know which Home Gardens lots have the space for a detached ADU on a 7,200 plus sq ft parcel. That local knowledge means we price the job honestly the first time, with allowances for the code upgrades a permit typically triggers.
The 365-Day Done Right Promise covers every Home Gardens build: if the work isn’t right, we come back and make it right. Free. That commitment is in writing, delivered before we drive a single nail. A live person answers our phones 24/7, so when a Home Gardens homeowner has a question mid-project, they talk to a human, not a voicemail loop.
Garage Conversion ADU in Home Gardens
A Garage Conversion ADU in Home Gardens is the most common path we build: turning an attached or detached garage into a fully permitted accessory dwelling unit with its own entrance, kitchen, bath, and usually one bedroom. The work involves framing interior walls, running new electrical and plumbing, insulating to Riverside County energy code, and finishing with drywall, flooring, and fixtures. Home Gardens owners pursue this when they want rental income from nearby Riverside and Corona commuters or a private space for an aging parent. Expect $110,000 to $195,000 for a complete attached garage ADU with a kitchen, and $100,000 to $180,000 for a detached version given the extra foundation and utility work.
Attached conversions on ranch-home footprints
Most Home Gardens ranch homes have attached garages that sit at the front or side of the house. Converting an attached garage means tying into the existing roofline, which is often straightforward on a single-story stucco home but still requires structural review. We handle the shear-wall calculations and header sizing the county plan reviewer wants to see.
Detached garages with septic constraints
Detached garages on big Home Gardens lots are prime ADU candidates because they sit away from the main house and often have enough setback. But on septic, we have to account for where the drain field sits and whether the added bedroom count triggers a percolation test. That test result dictates ADU size and placement, not the other way around.
Garage Apartment Conversion in Home Gardens

A Garage Apartment Conversion in Home Gardens usually means a smaller, leaner version: a garage turned into a studio or one-bedroom rental unit with a kitchenette and bath, often without the full square footage of a larger ADU. It is the right call when a homeowner wants rental income without building new footprint on the lot. Home Gardens owners pick this when their detached garage is too close to a septic drain field to support a bigger addition, or when the budget favors a faster return. These projects typically run $85,000 to $140,000 depending on whether we’re adding a full kitchen or a kitchenette.
Studio layouts that rent fast
Commuter renters from Riverside and Corona want a clean, cool, private space, and a garage apartment conversion delivers exactly that. We design open studios with a full bath, a compact kitchen line, and a dedicated entrance, which rents faster than a shared-wall setup. It also keeps construction costs down because we’re not moving plumbing far from the existing garage wall.
When a garage is too far gone to convert
Sometimes a 1960s Home Gardens garage has foundation cracks, termite damage, or roof decking that makes conversion more expensive than a new detached ADU. We’ll tell you that plainly. If the math favors a rebuild, we work with Cover, Dvele, and Boxabl prefab panels to put up a new unit on the same pad, often faster and with cleaner insulation performance. A written comparison of convert-versus-rebuild costs is part of every free estimate.
Common Garage Conversion Contractor Problems We See in Home Gardens Homes
- Outdated wiring behind original stucco: Homes built in the 1950s-70s in Home Gardens often still have original knob-and-tube or cloth-sheathed wiring inside garage walls. Once a conversion permit opens those walls, the county requires a rewire to current code, and that cost has to be in the contract, not a surprise change order.
- Septic reviews that stall permits: Because much of Home Gardens is unincorporated Riverside County without sewer lines, adding a bedroom to a garage conversion frequently triggers a septic percolation test and possibly a tank upgrade. Locking in a contractor who doesn’t flag this upfront means months of permit delay.
- Heat-soaked garages with dark shingles: Home Gardens summers push past 95°F, and a converted garage with standard batt insulation and dark composition shingles becomes an oven. We spec cool-roof materials and higher-efficiency mini-split HVAC as standard on ADUs here.
- Undersized ceiling framing: Many 1950s and 60s Home Gardens garages were framed with 2×4 ceiling joists never designed for habitable load. When we open the ceiling, those joists often show sag from decades of heat and need sistering before drywall goes up. That’s a structural item we include in the written estimate before demo starts.
Pricing for Garage Conversion Contractor in Home Gardens, CA
Real numbers matter, so here they are. A full garage ADU conversion in Home Gardens with one bedroom, kitchen, and bath runs $110,000 to $210,000. A garage apartment conversion with kitchenette and bath runs $85,000 to $140,000. Septic work, when required, typically adds $8,000 to $25,000 for a percolation test, new leach lines, or a tank upgrade. Electrical rewires on older Home Gardens homes add $6,000 to $14,000 depending on panel condition. We write every number into a line-item contract before work begins, and you approve any allowance use in writing before we spend a dollar beyond it. Call (831) 292-4191 for a free in-person estimate and exact written pricing.
Trusted Brands We Service in Home Gardens
We work directly with prefab ADU manufacturers that fit Home Gardens lots and heat. Cover, Dvele, and Boxabl panels show up frequently in our Home Gardens builds because their panelized construction moves fast once a permit clears, and their insulation specs hold up better in 95°F plus summers than standard stick framing. When you plan a garage conversion or a new detached ADU, we’ll walk you through which brand matches your lot size, septic setback, and budget, and our crews install them the same way they build stick-frame: with a written price and a written guarantee.
We Also Serve Cities Near Home Gardens
Lodgewick ADU Riverside handles garage conversion work throughout the Inland Empire and western Riverside County. Our Garage Conversion Contractor in Home Gardens crews also serve Riverside, Ontario, Fontana, and Chino. If your property sits near the Home Gardens boundary or you’re planning a project on a family member’s lot in a neighboring city, call (831) 292-4191 and we’ll schedule a walkthrough.
Serving Home Gardens, CA - Our Local Coverage Area
We’re based in the Home Gardens 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 Home Gardens
It depends on your lot’s current septic capacity and whether the conversion adds a bedroom. In Home Gardens, adding a bedroom to a garage conversion in unincorporated Riverside County typically triggers a percolation test, and if the drain field can’t absorb the added load, a tank upgrade or new leach lines run $8,000 to $25,000. We flag this before we quote so you know the real number upfront. Call (831) 292-4191 and we’ll check your parcel’s septic history in the first walkthrough.
We inspect first and write allowances into the contract. On a 1962 stucco ranch off Magnolia Avenue, our crew opened a detached garage to find original knob-and-tube wiring and undersized 2×4 ceiling joists that had sagged under decades of heat. We rewired to current code, sistered every joist, and added a cool-roof coating before the county inspector arrived, turning a would-be surprise into a permitted 480 sq ft one-bedroom ADU. You approve any allowance spending in writing before we move.
Given Home Gardens summer highs over 95°F, we specify cool-roof shingles or a reflective roof coating and a high-efficiency mini-split HVAC system on every garage conversion we build. Standard dark shingles and undersized wall insulation turn a converted garage into an unbearable box by July. These items are included in our written estimates, not added later.
Usually yes, but the septic system dictates the size. Most Home Gardens lots are 7,200 plus sq ft, which gives enough land for a detached ADU, but the existing drain field’s capacity and setback from the garage pad determine how large the unit can be. We check the septic layout and percolation requirements before finalizing the design so the plan doesn’t stall at permit review.
County review in unincorporated Home Gardens typically takes 6 to 10 weeks before approval, longer if septic review is triggered. After permit issuance, construction runs 8 to 12 weeks on most garage conversions. Our team handles the full permit package and septic coordination so you’re not stuck managing the county yourself. Call (831) 292-4191 for a realistic timeline on your specific parcel.
Get Your Free Home Gardens Estimate

The fastest way to know what your garage conversion in Home Gardens will actually cost is to have us walk the property. We’ll look at the framing, the wiring, the septic clearance, and the roofline, then hand you a written line-item price with a written guarantee. No pressure, no vague numbers. Call (831) 292-4191 to schedule your free estimate. Russ Delmar and the Lodgewick ADU Riverside team serve Home Gardens and the surrounding Inland Empire.
Written by Russ Delmar, Owner at Lodgewick ADU Riverside.




