Home Additions & ADUs in Midlothian
Space is the reason a lot of families choose Midlothian in the first place — and the reason many of them add on instead of move. The acreage neighborhoods around town — Oak Creek Ranch, Crystal Forest Estates, Hidden Lakes on Mockingbird, West Highland Estates, and the older Mockingbird tracts — sit on oversized and acreage lots with genuine room for a detached guest house, a garage apartment, or a second living wing. Newer communities like Hayes Crossing, Dove Creek, and MidTowne have the yard depth for a bumped-out primary suite or a real family room. Either way, an addition keeps you in your neighborhood and school zone while giving you the square footage you're missing.
Additions and accessory dwellings, done right
We design and build room additions, second stories, primary-suite and kitchen expansions, garage conversions, and detached ADUs — the guest quarters, in-law suites, and rental-ready casitas that big Midlothian lots are made for. A true addition is harder than it looks: the new foundation has to move with the old one on this Blackland Prairie clay, the roofline has to tie in cleanly, and the extra load on HVAC, electrical, and plumbing has to be planned, not bolted on. We engineer the connection, match existing brick and rooflines so the addition reads as original, and bring in state-licensed electricians and plumbers for the systems work.
The Midlothian permit path
Detached ADUs and additions are firmly in permit-and-inspection territory here, and the city runs a tight process. Before we can pull anything, we register as a contractor with Midlothian — a free registration completed in person, by email, by fax, or through the MyGov portal at public.mygov.us/midlothian_tx, which is a local requirement on top of, not instead of, state trade licensing. Plans and permits then go through the Building Inspections Department in Development Services at City Hall, 215 N. 8th Street, and we confirm setbacks, easements, and whether your lot is zoned to Midlothian or Waxahachie ISD before we design to the property line.
The Remo Guys work Midlothian from our Allen studio, about 55 miles north — no local office, but a dedicated project lead, a fixed scope and schedule, and full insured-and-bonded coverage. If your house is right but too small, adding on is almost always the smarter move than starting over.
What we handle
- —Build-out (ground level) & build-up (second story)
- —Accessory dwelling units & in-law suites
- —Foundation & drainage tie-ins on expansive clay
- —Structural engineering & stamped plans
- —MEP extension & load checks
- —Permits, setbacks & HOA review
Worth reading first
Home Additions & ADUs in Midlothian — FAQ
- Do I need a permit for home additions & ADUs in Midlothian, TX?
- Yes — home additions & ADUs in Midlothian is permitted work. It's filed through City of Midlothian Building Inspections Department (215 N. 8th Street, 2nd Floor) using MyGov online portal (public.mygov.us/midlothian_tx). Contractors must register with the City before pulling any building permit — registration is free and can be completed in person, by email, by fax, or through the MyGov portal (a local requirement separate from state trade licensing). We pull the permit and carry the project through every inspection.
- What does home additions & ADUs in Midlothian include?
- A home additions & ADUs project with us covers build-out (ground level) & build-up (second story); accessory dwelling units & in-law suites; foundation & drainage tie-ins on expansive clay; structural engineering & stamped plans; MEP extension & load checks; permits, setbacks & HOA review. Because we're design-build, one team owns design, engineering for North Texas's expansive clay soil, Midlothian's permitting, and construction — so nothing falls between a separate designer, builder, and stack of subcontractors.
- How much does home additions & ADUs cost in Midlothian?
- It depends on the size of the project, the finishes, and any structural or foundation work, so we scope and price each Midlothian project individually rather than quote a flat rate. To plan around typical DFW ranges, use our cost estimator or the free remodel cost & permit guide.
- Is The Remo Guys licensed and insured?
- Texas doesn't issue a statewide license for residential general contractors, so the real assurance is one accountable team that's insured and bonded — which The Remo Guys has been since 2019. The state-licensed electrical, plumbing, and HVAC trades on your project each pull and inspect their own permits under the build.
Planning a budget? See typical DFW ranges in our cost estimator or grab the free remodel cost & permit guide.
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