Texas home additions cost $150–$300 per square foot in the Hill Country. Most require a permit — Burnet County processes them in 2–4 weeks. Timeline runs 3–6 months for a standard room addition. Finish level, site conditions, and complexity drive final cost. Call TMB Construction at 830-289-3852 for a free local estimate.
Adding onto your home in Central Texas is one of the smartest investments you can make — especially when land values in the Hill Country continue rising and moving means competing in a tight market. Whether you're adding a master suite off Highway 29 in Burnet, expanding a guest wing near Lake Lyndon B. Johnson in Kingsland, or converting a garage into living space in Marble Falls, homeowners consistently ask the same questions: What will this cost? Do I need a permit? How long will it take? This guide answers the most common home addition questions we hear from Hill Country homeowners, backed by 7+ years of hands-on construction experience across Burnet, Llano, and Travis counties. Our answers include real cost figures, code references, and local permitting details — not generic national averages that ignore Central Texas realities. If you'd rather talk through your specific project right now, call TMB Construction at 830-289-3852 for a free estimate.