A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Room Addition Contractor Across Austin
Room addition work in Austin means something different than it does in Round Rock or Pflugerville. The lots are tighter, the bungalows are older, and the city’s compatibility review can send a perfectly good plan back over an 18-inch eave height. As a Room Addition Contractor team that works inside Austin’s review process every week, we know which submittal packet your lot needs before you pay a designer. If you’re planning an ADU conversion, a sunroom off the kitchen, or a primary suite addition in Travis Heights, Hyde Park, or Bouldin Creek, call (361) 309-9568 and we’ll put the price in writing before any work starts.
Why Fielding ADU Austin Is Austin’s Preferred Room Addition Contractor Company
Reed Calloway leads our Austin crew, and he’s spent enough time in front of the Residential Design and Compatibility Commission to know what gets approved and what gets bounced back. We don’t guess at Austin’s McMansion Ordinance limits. We read the adjacent bungalow heights, check the floor-area ratio cap, and adjust the plate height before the first submittal goes in. That’s why our customers in central Austin call us after another contractor already lost two months waiting on a denial.
Every crew member who shows up at your Austin home is background-checked and in uniform. You know who’s on site. The price goes in writing before a single nail is driven, and the Garrison Standard covers every addition for a full 365 days. If something fails inside that year, we come back and fix it at no charge. That’s not a slogan. It’s written on the estimate.
Our scheduling is coordinated from the brand’s Austin office, so when a permit comes back from the city, we’re there the same week to keep the framing sequence moving. We don’t let a job sit half-finished waiting on a committee. We build the review timeline into the schedule on day one.
ADU Conversion in Austin
ADU Conversion work in Austin typically runs $85,000 to $160,000 before permit fees, depending on whether you’re converting an existing garage or framing a brand-new detached unit. Central Austin’s 1920s to 1950s bungalows often have deep lots with alley access, which makes a rear-lot ADU conversion a cleaner build than a side-yard addition. The city’s 2006 granny flat pilot gives many East Austin lots a parking waiver, so you may not need to pour a driveway at all.
Garage Conversion in Central Austin
We convert attached and detached garages into rentable units or in-law suites across Travis Heights, Barton Hills, and Crestview. A detached garage conversion off an alley typically runs $95,000 to $140,000. The big variable is whether your existing slab meets current floodplain or foundation code, which we check before quoting.
Detached ADU Framing on Deep Lots
Where a lot runs 150 feet or deeper, we often recommend a new detached ADU rather than a garage conversion. In Hyde Park and Bouldin Creek, new ADUs start around $120,000 and go up from there. Compatibility review caps the floor-area ratio, so we size the unit to your specific lot before you spend money on plans.
Sunroom Builders in Austin
Sunroom Builders work in Austin has to account for the heat. A sunroom framed with standard single-pane glazing becomes unusable by June, which is why we spec low-E glass and cool-roof profiles that meet Austin’s enhanced energy code. Sunrooms in Austin typically run $45,000 to $95,000 depending on size and whether you want a conditioned space or a three-season room. East Austin sunrooms off the back of a bungalow are a particularly good ROI because the deep lots give you room to add square footage without triggering a full compatibility fight.
Primary Suite Additions with Natural Light
A primary suite addition in Travis Heights or Allandale commonly runs $110,000 to $180,000. We just framed a 480-square-foot primary suite off a 1938 bungalow in Travis Heights where the city flagged our 14-foot eave height because the neighbor’s cottage sits 9 feet from the line. We pulled the top plate to 12 feet, swapped to a cool-roof profile, and resubmitted. Approval came back in 11 days, so the framing schedule never stopped.
Four-Season Sunrooms in the Suburbs
In Austin’s 1990s and 2000s tract-home neighborhoods, a conditioned sunroom off the kitchen typically runs $65,000 to $110,000. HOA covenants apply before city code, so we check both. If the HOA prohibits ADUs, a sunroom addition is often the simplest legal path to extra living space.
Trusted Brands We Service in Austin
Austin homeowners are already researching prefab platforms, so we stay fluent in the real options. We build with Abodu, Cover, and Dvele systems when a prefab ADU shortens the review calendar or fits a tight lot better than stick framing. For conventional builds, we stock James Hardie siding profiles that match the 1930s to 1950s bungalow streetscapes in central Austin. If you’re considering a Boxabl or Mighty Buildings unit, we’ll tell you honestly whether it passes compatibility review on your lot before you order anything.
Common Room Addition Contractor Problems We See in Austin Homes
- Compatibility denial on plate height. A contractor submits a room addition with a 15-foot plate height, but the 1930s bungalows on either side average 11 feet to the eave. The city denies it, and the homeowner loses six weeks. We check adjacent eave heights before plans go in.
- Protected heritage live oak stops the site work. Austin Energy requires a tree survey before site work starts. A crew that skips that step can get stopped for two weeks while an arborist re-flags the tree. We pull the survey as part of the permit packet.
- Pouring a driveway nobody needed. East Austin alley-lot additions are often exempt from off-street parking under the 2006 granny flat pilot. Builders who don’t know the quirk waste $8,000 to $12,000 on concrete the city never required. We check the parking waiver before quoting.
- Floodplain foundation surprises. An addition in the Onion Creek floodplain needs a different foundation detail than one in Crestview. If the slab elevation is wrong, the city red-tags the formwork. We verify the floodplain trigger on your parcel before we draw the foundation.
Pricing for Room Addition Contractor in Austin, TX
Room addition pricing in Austin runs on a real spectrum, and here are the honest ranges. A garage ADU conversion: $85,000 to $160,000. A sunroom: $45,000 to $95,000. A primary suite addition: $110,000 to $180,000. Permit fees, tree surveys, and any compatibility variance work add $3,000 to $8,000 on top. What changes the price most is your lot: central Austin bungalow lots need more review care than a 1990s tract lot in a suburban corner of the city. We give you a written estimate up front, and the number you approve is the number on the final invoice. Call (361) 309-9568 to schedule a free estimate.
We Also Serve Cities Near Austin
Our crews work throughout Austin and into the nearby communities of Pflugerville, Manor, Buda, and Hutto. If your lot sits in a suburb with different review rules than the city, we’ll tell you what applies before you commit. As a Room Addition Contractor in Austin, we know where the city’s rules stop and the suburb’s rules start.
Serving Austin, TX - Our Local Coverage Area
We’re based in the Austin area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Room Addition Contractor in Austin
For a room addition in a central Austin neighborhood like Travis Heights or Hyde Park, compatibility review typically adds 3 to 6 weeks to the calendar from first submittal to approval. If the first submittal gets flagged, a resubmittal typically adds another 10 to 14 days. We build that window into the schedule from the start, so the crew isn’t sitting idle. Call (361) 309-9568 and we’ll give you a realistic timeline for your specific lot.
Yes, in most Hyde Park parcels a side-yard addition closer than 5 feet requires a setback variance. Austin’s compatibility standards don’t grant automatic exceptions for older bungalows on narrow lots. We prepare the variance packet, file it, and often get approval in one hearing when the adjacent structure heights and setback conditions are documented correctly. Call (361) 309-9568 and we’ll check your lot’s setback before you pay for plans.
In Bouldin Creek, the compatibility reviewers want materials that match the adjacent streetscape. Fiber-cement lap siding in a 4 to 6 inch exposure, painted wood trim, and a cool-roof profile in a low-reflectance color all pass cleanly. Standing-seam metal in a bright color or stucco on a 1940s block can trigger a second review. We spec materials to your specific block before submittal. Call (361) 309-9568 for a material consultation.
Yes, in many East Austin parcels a garage-conversion ADU is exempt from the off-street parking requirement. The exemption comes from the city’s 2006 granny flat pilot program, which waived parking for ADUs on alley-accessed lots in certain East Austin zones. We verify the waiver applies to your parcel before quoting, so you don’t pour concrete the city never asked for. Call (361) 309-9568 and we’ll check your address.
Because Onion Creek parcels sit inside a FEMA-designated floodplain with a required base flood elevation, the finished floor of the addition must sit above that elevation. That usually means a pier-and-beam or raised slab foundation with flood vents, not a standard slab-on-grade. Crestview is outside the floodplain, so a standard slab works there. We pull the floodplain determination on your parcel before we draw any foundation. Call (361) 309-9568 for an exact answer on your lot.
Planning a room addition in Austin means knowing which submittal packet your exact lot needs. We prepare it, file it, and schedule around it so the work doesn’t stall. Call (361) 309-9568 to schedule your free estimate with Reed Calloway and the Fielding ADU Austin team.
Written by Reed Calloway, Owner at Fielding ADU Austin, serving Austin neighborhoods since joining the Garrison Partners family.
