A fixed-price addition project from our Plano-based DFW team serving Addison 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 Addison typically runs $120,000 to $400,000, depending on whether you are bumping out a single room, adding a full second story, or building a primary-suite or in-law wing onto an existing 1980s-90s home. Permits and inspections run through the Town of Addison’s Development & Neighborhood Services department and its Building Safety / Building Inspections program, with plans submitted through the Town’s online permit portal. The biggest Addison-specific cost driver is the town’s small, fully built-out lots: because Addison is a landlocked Dallas County town dense with townhomes, condos, and tight single-family parcels like Les Lacs, many additions must go vertical (second story) rather than outward, which adds engineered foundation reinforcement, structural framing, and HOA architectural review. UHS prices all of this up front with a fixed-price contract and backs the work with a 3-year workmanship warranty. For a line-item look at where the money goes, see our DFW remodel cost guide.
Addison is one of the smallest, most built-out towns in Dallas County, so a home addition here is rarely a sprawling expansion across an open yard. Much of Addison grew during its 1980s boom, and outside of the traditional single-family pockets like Les Lacs, the town leans heavily toward townhomes, condos, and the walkable Addison Circle and Vitruvian Park districts. That means UHS designs additions to fit tight, fully developed lots: second-story master suites over an existing 1980s-90s footprint, garage conversions and bump-outs, and sunroom or in-law suites tucked into compact backyards near Restaurant Row and Addison Circle Park. With 5,875+ DFW projects since 2014 and a fixed-price model, we engineer additions that respect Addison’s mature lots, HOA standards, and the reality that here you usually build up, not out.
We build home additions across Addison, including the single-family streets of Les Lacs, the Addison Circle and Vitruvian Park / Vitruvian Way districts, Addison Grove, and the Addison East and Addison West areas.
“An addition in Addison 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 deliver home additions across nearby DFW communities. See our home additions in home additions in Plano, Carrollton, Richardson, and Flower Mound.
Sourced from NARI Cost vs. Value 2025, Texas Real Estate Commission, International Code Council, and 11 years of fielding the same calls in Addison. Looking for ballpark numbers? Try our cost calculator.
