Home Additions & ADUs in Garland, TX

Plenty of Garland families are one room short of staying put. They bought into a settled neighborhood and a Garland ISD school zone years ago, the house still works, and moving rarely pencils out against today's rates. So the question becomes how to add square footage that reads as if it were always there — a ground-level room addition, a second story, or an in-law suite. Which one fits depends less on the wish list than on your lot, any HOA, and how the new space ties into a house already resting on Blackland clay.

The ADU question, answered honestly

If you've read about California backyard cottages or a big city's "granny flat" rules, hold that expectation loosely for Garland. Whether a fully detached, independently rentable dwelling is allowed on a single-family lot here is a zoning question — one to confirm against current City of Garland code before you design around it. What's reliably available are the attached paths: a bump-out or full room addition, a second-story addition over the existing footprint, or an in-law suite under the main roof with its own entrance and bath. A garage conversion is the other route to a self-contained space.

Build out or build up

Building out at grade is usually cheaper per square foot, but it spends lot coverage and leans on your side and rear setbacks. Garland's lots vary: the generous parcels in established neighborhoods like Springpark or the mid-century ranch blocks of central Garland often have real room to push out, while tighter lots make building up the smarter move. On this clay the choice is structural, not just spatial — a new ground-floor slab has to be engineered and doweled into the existing foundation, while a second story needs an engineer to confirm the current slab and framing can carry the added load.

Tying new to old on clay

An addition marries a brand-new slab to one that's been settling on expansive Blackland Prairie clay for decades, and two foundations of different ages want to move independently. Without an engineered connection matched to the original, the joint between old and new is exactly where the first crack shows. A new wing also concentrates roof runoff at a new corner, so gutters and grading get reworked to move water away from both the old house and the new one.

Permits, registration, and the seam

Any change to square footage needs a building permit — including enclosing a patio or converting the garage, which owners often assume is "free" space. In Garland the contractor has to be registered with the Building Inspection Department (800 Main Street) before that permit issues, and not only the state-licensed trades: the general contractor too, no exceptions, with a homeowner affidavit the alternative for owners doing their own work. Applications go through my.garlandtx.gov or the permit counter (972-205-2300). Foundation tie-in, roofline marriage, brick match, HVAC load, and drainage all have to meet at one seam and disappear — precisely what a general contractor exists to own. The Remo Guys has added onto Garland homes since 2019, insured, bonded, and city-registered.