Twelve ways to add space to a DFW home — suites, sunrooms, second stories, bump-outs, detached garages, ADUs and more — each with an honest cost range and resale read. Designed, engineered, permitted, and built by one design-build team since 2014.

The most popular DFW home addition ideas are primary suites, sunrooms and four-season rooms, second-story additions, in-law and guest suites, and great-room expansions — with bump-outs, garage and attic conversions, detached garages, ADUs, home offices, mudrooms, and screened porches close behind. Costs range from about $25,000 for a bump-out or conversion to $400,000+ for a full second story. The right idea comes down to your lot, your budget, and whether you’re building for daily living or resale. Browse all twelve below, then see how we build them or the full cost guide.





“Every idea on this page is really a tie-in — new foundation, roofline, and HVAC married to a house that’s been moving for twenty years. We engineer that connection before contract, so the price you sign already accounts for what’s behind the wall.”
Also explore kitchen, bathroom, or whole-home renovation →
Sourced from NARI Cost vs. Value 2025, the Texas Real Estate Commission, and 11 years of building additions across DFW. Want ballpark numbers fast? Try our cost calculator.
