Home Additions & ADUs in Dallas, TX

In Dallas's established neighborhoods, an addition is often the only way to get more house without giving up the address. The lots in Lakewood, the M-Streets, and East Dallas were platted a century ago — narrow and deep, with the house pushed toward the street — so the space to grow is usually out the back or up top, not to the sides.

Rear and second-story additions

The most common Dallas addition extends the rear of the home: a larger kitchen, a family room, a real primary suite the original 1920s floor plan never had. On the pre-war Tudors and bungalows of Greenland Hills and Junius Heights, the craft is making new space look original — matching brick, rooflines, window proportions, and trim so the addition reads as though it was always there. Many M-Streets homes have already been expanded exactly this way, preserving the street-facing facade while adding square footage behind it. Second-story additions are the other path, and they're the more structural one: a bungalow built for one story has to be checked for whether its foundation and framing can carry a second, and on Dallas's expansive clay that question starts underground. Matching a pier-and-beam addition to a pier-and-beam house — so the two move together with the soil — is its own discipline.

ADUs in Dallas: the honest path

Garage apartments and backyard casitas are in demand across Oak Cliff and East Dallas, but Dallas does not permit ADUs by right on a typical single-family lot. Most lots need an adopted Accessory Dwelling Unit Overlay — a neighborhood-initiated process — or a special exception from the Board of Adjustment, and units are capped around 800 square feet. That feasibility question comes first: before anyone draws a casita, we confirm whether your lot can actually carry one, and an HOA can restrict it even where the city allows it. It's a real conversation, not a brochure promise.

Setbacks, review, and the permit path

An addition changes the building's footprint, which puts it squarely into zoning — setbacks, lot coverage, height — and, if your home sits in a historic district like Swiss Avenue or Winnetka Heights, into a Certificate of Appropriateness from the Landmark Commission before exterior work can start. Everything is filed through Dallas's Planning & Development Department on the DallasNow portal — the Accela system that replaced the city's old POSSE and ProjectDox platforms in May 2025 — and Dallas requires an active general contractor registration on file before it will issue the permit or schedule inspections, unless the homeowner files an Exemption from Contractor Registration to build on their own residence. The Remo Guys carries that registration and handles the zoning, review, and inspection sequence as one design-build team — insured and bonded, working out of Allen and building across Dallas since 2019.