A fixed-price addition project from our Plano-based DFW team serving Prosper homeowners, with designers, project leads, and tradespeople who finish on the day they said they would. Eleven years, 5,875 projects, one promise: your quote is your price.
A home addition in Prosper typically runs $120,000 to $400,000, with larger second-story builds and estate-lot expansions in communities like Whispering Farms or Whitley Place landing at the upper end. Permits and inspections run through the Town of Prosper Building Inspections Division (Prosper is a town, not a city), part of its Development Services Department, submitted via the Citizen Self-Service portal. The biggest Prosper-specific cost driver for additions is that most homes sit in master-planned HOA communities with architectural-review committees, so an addition’s exterior brick, stone, and rooflines must be matched and approved before work starts, which adds design and material-matching cost. On the larger one-acre-plus lots, building outward is often cheaper per square foot than a second story, while tighter production-home lots in Windsong Ranch or Star Trail may push you upward instead. UHS quotes a fixed price up front so your number doesn’t move mid-project. For a line-item look at where the money goes, see our DFW remodel cost guide.
Prosper is one of the youngest housing markets in DFW: roughly 91% of homes here were built since 2000, and the median build year lands in the early 2010s. That changes what a home addition means in this town. Most Prosper additions aren’t about repairing an aging house, they’re about outgrowing a builder-grade floor plan in a master-planned community like Windsong Ranch or Star Trail, or expanding a semi-custom home on one of the larger acre-plus estate lots in Whispering Farms, Whitley Place, or Gentle Creek Estates. UHS Remodeling builds room additions, primary-suite expansions, second-story builds, and casita and pool-house additions tied into those newer slab and framing systems. Since 2014 we’ve completed 5,875+ projects across DFW with a fixed-price model and a 3-year workmanship warranty, so your Prosper addition matches the home you already love.
We build home additions across Prosper, including Windsong Ranch, Star Trail, Whitley Place, Whispering Farms, Gentle Creek Estates, and Lakewood at Brookhollow.
“An addition in Prosper is half permits, half craft. We pre-meet with the city’s plan review before drawings are stamped — that’s why our additions break ground 6 weeks after contract, not 14.”
All ranges include design, materials, labor, permits, and 3-year warranty. Sourced against NARI Cost vs. Value 2025 regional benchmarks.
Your construction lead, Daniel B., runs your addition from framing to final inspection.
We serve home additions across nearby DFW communities. See our home additions in Frisco, McKinney, and Little Elm.
Sourced from NARI Cost vs. Value 2025, Texas Real Estate Commission, International Code Council, and 11 years of fielding the same calls in Prosper. Looking for ballpark numbers? Try our cost calculator.
