(512) 998-1798

Austin TX General Contractor

Home Addition Austin TX

Need more space without moving? Jay's Construction Contractors builds custom home additions throughout Austin — second stories, master suite expansions, in-law suites, sunrooms, and family room additions. We handle design, permitting, and construction. No money upfront. Free quotes.

Home Addition Contractor Serving All of Austin, TX

Austin's real estate market has made moving expensive, and many homeowners in established neighborhoods like Tarrytown, Allandale, Hyde Park, and Barton Hills find it more practical to expand their existing home than to uproot their family and pay today's elevated prices. A well-built home addition adds square footage, increases property value, and lets you customize the space to your exact needs — all without the trauma of a move.

Jay's Construction Contractors has been building additions across Austin and Travis County for more than two decades. Jay spent years working with major Austin general contractors before going independent — which means his clients get the knowledge and skills of a big firm at a fraction of the overhead cost. Our bids regularly come in significantly lower than the large remodeling companies advertising on billboards around Austin.

Every home addition project we take on starts with an honest conversation about what is possible given your lot size, zoning restrictions, and budget. We walk through the City of Austin permitting process with you, handle structural drawings, and build to code from day one. Whether you need a 200-square-foot sunroom off the back of your South Congress bungalow or a full second-story addition above your Mueller home, we have the experience to do it right.

Types of Home Additions We Build in Austin

  • Second-story additions
  • Master suite additions
  • In-law and guest suite additions
  • Family room expansions
  • Sunroom and enclosed porch additions
  • Kitchen bump-out additions
  • Bedroom additions
  • Home office additions
  • Garage-to-living-space conversions
  • ADU and casita construction
  • Mudroom additions
  • Laundry room additions

What Goes Into Building a Home Addition in Austin

A home addition is more complex than most interior remodels because it involves structural work, foundation work, framing, roofing, exterior cladding, and full interior finishing — all of which must integrate seamlessly with your existing structure. Here is how Jay's process works from first call to final walkthrough.

We begin with a site visit to assess your home, your lot, and your goals. We check setback requirements and impervious cover limits under Austin's zoning code — important factors in what you can legally build. We then develop a scope of work and a written estimate. Unlike many Austin contractors who give vague ballpark numbers over the phone, Jay provides a detailed written bid so you know exactly what is covered.

Once you approve the scope, we handle permit drawings and submit to the City of Austin Development Services Department. After permit approval, we begin site work: footing excavation and foundation pour for ground-level additions, or structural reinforcement of existing walls for second-story additions. We frame, sheathe, roof, and wrap the new structure before beginning interior work — insulation, drywall, flooring, trim, and paint — to match the existing home as closely as possible.

Throughout the project, we schedule required city inspections and keep you informed of progress. At completion, we walk the finished space with you and address any punch-list items before final payment.

Austin Neighborhoods We Serve for Home Additions

We build home additions throughout Austin and Travis County, including Hyde Park, East Austin, Mueller, South Congress, Barton Hills, Tarrytown, Allandale, Rosedale, Crestview, North Loop, Windsor Park, Travis Heights, Circle C Ranch, Steiner Ranch, Westlake Hills, Avery Ranch, and all surrounding areas. We also serve the greater Austin metro including Round Rock, Cedar Park, Pflugerville, Georgetown, Leander, and Dripping Springs.

Frequently Asked Questions

How long does a home addition take in Austin TX?

A single-room addition typically takes 6 to 12 weeks after permit approval. A second-story addition or large master suite expansion can run 3 to 5 months. Permitting timelines with the City of Austin vary by project complexity.

Do I need a permit for a home addition in Austin?

Yes. Any addition that increases living space requires a building permit from the City of Austin. We handle the permit application and all required inspections as part of our service.

How much does a home addition cost in Austin TX?

A basic room addition starts around $40,000 to $70,000. A master suite addition with bathroom runs $80,000 to $150,000. Our bids consistently come in below the Austin market average for equivalent scope. Call for a free in-person estimate.

Will the addition match my existing home?

Yes. Matching existing siding, roofline, windows, and trim is a priority. We source matching materials and frame rooflines to blend seamlessly with your original structure.

Ready to Add Space to Your Austin Home?

Call Jay for a free on-site consultation and written estimate. No money upfront. No sales pressure.

(512) 998-1798