







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 Cedar Hill
Cedar Hill homeowners who need an accessory dwelling unit built on their lot face one question before anything else: what will this actually cost, and will that number hold? A detached ADU in Cedar Hill typically runs $180 to $320 per square foot, so an 800-square-foot unit lands between $144,000 and $256,000 depending on site conditions. Our crews work throughout Cedar Hill regularly, from High Pointe to Lake Ridge, and we know this ground. If you’re pricing a garage conversion or a ground-up ADU, call (361) 204-4652 and we’ll put a written number in front of you before any work starts.

Lodgewick ADU Dallas is the ADU company of the Kingswell family, and every project we build carries ADU Builders commitments in writing: a real price, a real arrival window, and a 365-Day Done Right Promise that says we come back and fix it if it isn’t right.
Why Lodgewick ADU Dallas Is Cedar Hill’s Preferred ADU Builders Company

Cedar Hill isn’t flat. The city sits on the eastern edge of the Trinity River Escarpment, and elevations swing by more than 400 feet across the city. That matters when you’re pouring a foundation. We’ve dug footings on slopes off High Pointe and Lake Ridge where shallow limestone bedrock sits only 18 inches below grass, and we’ve learned to plan for rock-breaking before the bid goes out. Homeowners tell us the same thing after working with other builders: the bid they signed didn’t mention rock excavation, and the change order arrived after the hole was already open. Our approach is different. Russ Delmar leads our estimating process, and he insists on walking every Cedar Hill site before a written price goes out. The escarpment gets priced into the job up front, not as a surprise.
Cedar Hill residents also deal with a patchwork of building requirements depending on where the lot sits. A detached ADU in the Cedar Hill Historic District triggers design review that a standard accessory structure permit over in High Pointe doesn’t. We file the right permit the first time. That kind of local knowledge only comes from building here, and we’ve done enough Cedar Hill projects to know which questions the city will ask before they ask them.
Every person who works on your property is background-checked and in uniform. When a Lodgewick crew shows up in Cedar Hill, you know exactly who’s walking your property. That’s the Cedar Hill standard we hold ourselves to.
ADU Construction in Cedar Hill
ADU Construction in Cedar Hill means building a second, fully permitted dwelling on a lot that already has a primary home. It has a kitchen, a bathroom, its own entrance, and its own address. In Cedar Hill, that often means carving a foundation into escarpment terrain, running utilities across a sloped lot, and passing the city’s inspection sequence from footing to final. Cedar Hill homeowners pursue ADUs for aging parents, grown kids, or rental income, and the construction process runs anywhere from eight to fourteen months from design to certificate of occupancy. Cost runs $180 to $320 per square foot for a custom build, with site prep being the biggest wildcard on hillside lots.
Custom Builds with Site-Specific Foundations
Most Cedar Hill ADUs are custom builds because the lot dictates the design. A flat Duncanville lot might take a standard slab, but a Cedar Hill parcel off West Belt Line or near Joe Pool Lake’s western slopes might need drilled piers or a stepped foundation. We design around what’s actually under the soil, not what a generic plan assumes is there.
Permits, Inspections, and the Cedar Hill Sequence
Cedar Hill’s inspection process moves in a specific order, and skipping a step costs weeks. Foundation embedment, plumbing pressure test, rough electrical, insulation, and final all happen in sequence. We schedule them in the right order and keep the job moving so the calendar doesn’t stretch past what we promised.
Detached ADU in Cedar Hill
A Detached ADU in Cedar Hill is a standalone structure, fully separate from the main house, and it’s the most common type we build here because Cedar Hill lots tend to have the room. These projects run $190 to $340 per square foot when they’re custom framed on site, while a prefab shell finished into a livable unit comes in lower. The tradeoff is site work. A detached unit needs its own foundation, its own utility trench, and its own path to the street, and in Cedar Hill that utility trench sometimes goes through limestone.
Prefab and Modular Options
We work with Mighty Buildings, Boxabl, and Plant Prefab when a Cedar Hill homeowner wants a faster, more controlled build. A prefab unit shows up as a shell or panelized system, and we handle the foundation, the utility connections, and the finish work that turns a module into a permitted home. This route can save two to three months against a stick-built ADU, depending on the manufacturer’s lead time.

Foundation and Rock Excavation Reality
Cedar Hill bedrock doesn’t show up on a plat map. We do a soils report before we bid, so the cost of rock-breaking, pier drilling, or over-excavation is in your written price from day one. Flatland builders who don’t know the escarpment often skip this step, and the homeowner finds out when the excavator hits stone and the crew walks off the job.
Trusted Brands We Service in Cedar Hill
Our Cedar Hill customers regularly ask about Tuff Shed conversions, and we’ll tell you straight: a Tuff Shed can become a legal ADU in Cedar Hill if the foundation, insulation, electrical, and plumbing are all brought up to residential code by a licensed builder. We’ve also completed projects using Mighty Buildings and Plant Prefab components, matching each system to the lot, the slope, and the budget. Because we build with these brands week to week, we know their lead times and their structural requirements, which keeps a Cedar Hill project from stalling while everyone figures out how the pieces fit. When you call (361) 204-4652, we’ll tell you which system fits your lot and which one doesn’t.
Common ADU Builders Problems We See in Cedar Hill Homes
- Shallow limestone on hillside lots. Cedar Hill sits on the Trinity River Escarpment, and bedrock is closer to the surface than most people realize. Builders who bid flatland pricing hit rock and stop work until the owner pays a change order. We price rock excavation up front.
- Historic District design review stop-work orders. A detached ADU in the Cedar Hill Historic District needs design review before permits are issued. We’ve seen projects shut down because someone filed a standard accessory structure permit and started digging. We file the right permit the first time.
- Utility runs across sloped lots. Electrical feeders and plumbing lines on a Cedar Hill slope sometimes need trenching through rock or around grade changes. Skipping the pressure test before a slab pour means cutting into cured concrete later. We test before we pour, every time.
- Prefab shells without a foundation plan. A homeowner buys a Tuff Shed or panelized unit, then discovers the city won’t approve it as living space without an engineered foundation and residential utility hookups. We convert these correctly, with the permits and inspections Cedar Hill requires.
Pricing for ADU Builders in Cedar Hill, TX
Here’s what we tell every Cedar Hill homeowner before they sign anything. A studio ADU of 400 to 600 square feet runs $72,000 to $190,000 depending on site conditions. A one-bedroom detached ADU of 600 to 900 square feet runs $114,000 to $288,000. A two-bedroom unit runs $180,000 to $400,000. Rock excavation, utility runs on sloped lots, and Historic District design review all move the number, and we explain each line item before you commit. The 365-Day Done Right Promise is written into every contract, and the price we quote is the price you pay unless you change the scope. Call (361) 204-4652 for a free written estimate on your specific lot.
We Also Serve Cities Near Cedar Hill
Lodgewick ADU Dallas builds accessory dwelling units across the southern and western metroplex. In addition to Cedar Hill, our crews work regularly in Duncanville, Red Oak, Grand Prairie, and Dallas. If you’re in a neighboring community and want the same written-price, written-guarantee approach, call us and we’ll schedule a site visit.
Serving Cedar Hill, TX - Our Local Coverage Area
We’re based in the Cedar Hill 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 Cedar Hill
Most Cedar Hill lots east of the escarpment have limestone within a few feet of the surface, but the only way to know for certain is a soils report. We order one before we bid, so rock-breaking cost is in your written price, not a change order later. Call (361) 204-4652 and we’ll walk the lot first.
Cedar Hill requires foundation embedment inspection, a plumbing pressure test before the slab pour, rough electrical, insulation, and a final inspection before the certificate of occupancy. If the unit is in the Historic District, design review comes first. We schedule each one in order and stay ahead of the city’s timeline.
Plan on eight to fourteen months. Soils testing and design take four to eight weeks, Cedar Hill permit review runs four to ten weeks depending on the district, and construction runs five to nine months, with rock excavation and sloped lots adding time. Prefab systems can cut two to three months off the build phase. We’ll put a calendar in writing when we bid.
Hidden rock, change orders, and permit complications. We eliminate the first one with a soils report before bidding. The second is on you: when a homeowner adds square footage or upgrades finishes mid-build, the price moves. And the third doesn’t happen when you file the right permit from the start. That’s why our written price stays firm unless you change the scope.
Yes, a Tuff Shed can become a legal ADU in Cedar Hill, but the shed shell is only the starting point. You need an engineered foundation, insulation, electrical, plumbing, and a residential certificate of occupancy. We handle that conversion end to end, and it typically runs less than a custom build of the same size. Call (361) 204-4652 to talk through whether your existing shed qualifies.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, building accessory dwelling units across Cedar Hill and the southern metroplex under the Kingswell Guarantee.



