A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Mather
If you’re looking into an accessory dwelling unit in Mather, you’re probably wondering what it actually costs and whether the contractor will keep their word. Most Mather projects run $180,000 to $420,000 for a detached unit, with garage conversions coming in lower at $120,000 to $220,000. We give you a written price before any work begins, no exceptions. Call our Mather ADU team at (279) 256-1973 and we’ll walk the property, talk through your lot’s constraints, and hand you a number that won’t change at the door.
Why Lodgewick ADU Sacramento Is Mather’s Preferred ADU Builders Company
Mather’s neighborhoods sit on a patchwork of zoning and land-use rules that shift street by street. Some parcels fall under Sacramento County jurisdiction; others carry restrictions tied to the former Mather Air Force Base. Our crew works these parcels regularly. We know which setbacks apply where, which lots need Sacramento County pre-clearance before design, and how to sequence a permit so the project doesn’t stall. Russ Delmar leads our Sacramento ADU operation, and he’s walked enough Mather lots to tell you within the first visit whether a detached ADU fits your rear yard or whether a JADU attached to the existing home is the smarter route. That kind of local knowledge is the difference between a build that starts and one that sits.
We’ve built in Mather long enough to know what the soil does. This ground was once an airfield, compacted hard in places and peppered with abandoned utility remnants in others. When excavating for footings, we hit unexpected surprises often enough that our crews plan for them instead of acting shocked and handing you a change order. That’s not a sales line. It’s a site-condition fact that shows up in how we price and schedule. The Kingswell Guarantee puts it in writing: price first, real arrival window, clean job site, and a written guarantee on every project.
ADU Construction in Mather
ADU Construction in Mather means building a small, fully separate home on a lot that already has a primary residence. Sometimes that’s a backyard cottage with its own address and utility hookups. Sometimes it’s a conversion of an attached space that becomes a Junior ADU, with a kitchenette and separate entrance but shared living systems. In Mather, the question of which direction to go usually comes down to lot size and the age of your existing structure. Older post-war bungalows near the former base often have tight rear setbacks but generous side yards, which pushes the design toward a narrower footprint. Newer subdivisions from the 2000s tend to have compact lots where a detached unit squeezes the remaining yard space more than a JADU would.
You’d call for ADU construction when you need more livable square footage and the existing house or garage can’t deliver it. Parents move in, adult kids stay longer, remote work demands a quiet office separate from the house. A new ADU solves it without a move. Expect to spend $150,000 to $280,000 for a smaller one-bedroom unit in Mather, $220,000 to $420,000 for a two-bedroom, and $350,000-plus for larger custom builds. Prices here run slightly below Sacramento proper because lot acquisition didn’t inflate the same way, though county permit fees close that gap on some parcels.
Custom Built ADUs
Custom-built ADUs in Mather account for most of what we do. These are designed from the ground up around your lot’s actual dimensions and the way sunlight and heat move across it. On Mather’s flat, open terrain, orientation matters more than people expect. A unit facing unshaded western exposure will bake in July; we design for that from the first sketch rather than bolting on more AC afterward.
Expect custom builds to start around $200,000 for a studio and run past $400,000 for a two-bedroom with higher-end finishes. Design, engineering, county permit fees, and utility connections all sit inside that range when we quote it. Nothing hidden.
Prefab ADU Installation
Prefab and modular ADUs are growing in Mather, and we install them often. We work with Abodu, Cover, and Dvele units most frequently, matching each to the lot’s access and foundation conditions. Prefab cuts on-site construction time significantly, which matters when you’re living in the main house during the build. A prefab one-bedroom with site work, utility connections, and installation typically runs $180,000 to $250,000 in Mather. The foundation and utility trenching can equal a third of the total, especially on those hard-packed former-airfield soils.
Detached ADU in Mather
A Detached ADU in Mather is a stand-alone unit in the rear or side yard, with its own foundation, roof, and utility runs. No shared walls with the main house. That separation is exactly what many Mather homeowners want, especially the former military and defense families who value privacy and want a tenant or in-law to have a truly independent entrance. Detached units also offer the cleanest rental setup, since the unit can be addressed and metered independently from the primary residence.
On flat former-airfield lots without much shade, detached ADUs need real attention to cooling and heat gain. We spec high-efficiency mini-split systems as standard and push for solar-reflective roofing materials when the budget allows. A detached studio in Mather typically runs $180,000 to $260,000. A one-bedroom sits between $220,000 and $320,000. A two-bedroom starts around $300,000 and climbs quickly with site work. Those figures include the foundation, the utility trenching, the county fees on standard parcels, and the written guarantee.
Studio ADU
Studio ADUs in Mather run from $140,000 to $240,000 depending on whether you go prefab or custom. These are one-room living spaces with a bathroom and kitchenette, built as attached or detached units. On Mather’s smaller lots, a studio often fits where a full one-bedroom won’t, making it the most practical path to extra space without sacrificing the entire yard.
Junior ADU
A Junior ADU, or JADU, converts space inside the existing home, like a spare bedroom or den, into a small independent unit with its own entrance and kitchenette. JADUs are the most budget-conscious option in Mather, typically $80,000 to $150,000. They move faster through permitting on most county parcels and keep the build footprint inside the heated envelope of the existing house, which is a real advantage on Mather’s triple-digit summer days.
Trusted Brands We Service in Mather
Our Mather customers regularly ask about Abodu and Cover for prefab speed, and James Hardie siding for long-term durability against Mather’s dry, hot summers. We stock common installation materials locally so you’re not waiting on a shipment when the build is mid-frame. If you already have a brand in mind or a unit ordered, our ADU Builders team will install it and handle the site work, utilities, and county sign-offs around it. We’d rather work with what fits your lot and budget than push one manufacturer on everyone.
Common ADU Builders Problems We See in Mather Homes
- Underground surprises from the airfield era. Mather’s history as an air base left compacted soil and occasional buried utility fragments that turn a routine footing dig into a discovery. Our crews price for this reality up front, so a Mather excavation rarely produces a change order.
- Heat gain on open, flat lots. Mather sits on open former-airfield terrain with little tree cover. Without proper orientation, roof reflectance, and high-efficiency cooling, an ADU becomes an oven from June through September. We design cooling into the shell, not as an afterthought.
- Street-by-street zoning confusion. Some Mather parcels fall under Sacramento County rules while others carry former military land-use restrictions. Homeowners who get generic advice from an out-of-town builder submit plans that stall. We check the parcel’s specific designation before design begins.
- Tight side-yard access on older bungalows. Many 1950s-1970s Mather homes have narrow side yards between houses. That limits how equipment and prefab modules reach the rear yard, and it changes what kind of unit makes sense. We’ve navigated enough of these to tell you quickly whether a crane lift, a flatbed, or an on-site stick build is the right call.
Pricing for ADU Builders in Mather, CA
Here are honest Mather market ranges as of 2025. A Junior ADU runs $80,000 to $150,000. A garage conversion typically runs $120,000 to $220,000. A detached studio ADU runs $180,000 to $260,000. A one-bedroom detached unit runs $220,000 to $320,000. A two-bedroom custom ADU runs $300,000 to $420,000. Prefab installation with site work runs $180,000 to $250,000 for a one-bedroom. Site conditions, utility distance, and finishes move you within those bands. We give you the written price before any work starts, and that number holds. Call (279) 256-1973 for a free estimate on your specific Mather lot.
We Also Serve Cities Near Mather
Our ADU Builders in Mather crews regularly work neighboring communities too, including Carmichael, North Highlands, Folsom, and Sacramento. If you’re just outside Mather and weighing an ADU, a Home Addition Contractor in Mather can assess your property and advise whether an addition, ADU, or something else serves you best. We also handle Garage Conversion Contractor in Mather work when your existing garage is the smarter square footage to convert.
Serving Mather, CA - Our Local Coverage Area
We’re based in the Mather 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 ADU Builders in Mather
An ADU in Mather typically costs between $80,000 and $420,000 depending on type and size. A JADU runs $80,000 to $150,000, a garage conversion $120,000 to $220,000, a detached studio $180,000 to $260,000, and a two-bedroom custom build $300,000 to $420,000. Call (279) 256-1973 and we’ll give you an exact written quote after walking your lot.
Most Mather projects move from signed contract to permit submission within four to six weeks, with construction starting once the county approves. Parcels with former military land-use restrictions can add time for additional review. We give you a written schedule at contract signing, so you know the real timeline before work begins.
Yes, we pull all Sacramento County permits and handle every inspection for ADU builds in Mather. Permit fees, plan checks, and inspection scheduling are included in our written price. You won’t chase paperwork, and we don’t start before the permit is issued.
Detached ADUs in Mather often run 5% to 10% below comparable Sacramento builds because lot costs and some site conditions here are less expensive. However, Mather’s hard-packed former-airfield soils can add foundation and trenching costs that offset part of that difference. Our free estimate shows you exactly where your money goes.
Every ADU we build in Mather includes our 365-Day Done Right Promise in writing. If the work isn’t right, we come back and make it right, with a free return visit if the work fails within the guarantee period. Call (279) 256-1973 for a free estimate and we’ll show you the guarantee before you sign anything.
Schedule Your Free ADU Estimate in Mather
You’ll get a written price, a real arrival window, and a build crew that leaves the site cleaner than they found it. That’s The Kingswell Way, and it’s been the standard for every Mather project we’ve done since 2010, under Russ Delmar’s leadership. Call (279) 256-1973 today and start with a real number, not a guess.
Written by Russ Delmar, Owner at Lodgewick ADU Sacramento, serving Mather since 2010.
