Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterFast, Reliable Home Additions & ADU Across Pflugerville
A home addition or ADU in Pflugerville typically runs $45,000 to $130,000 for a full addition, while an attached or detached ADU generally lands between $90,000 and $220,000 depending on size and site work. Most Pflugerville projects we take on move from first phone call to permit-ready drawings in three to five weeks, and we work across both 78660 and 78691. Call (877) 610-1318 and we’ll walk you through what your specific lot can support before you spend a dollar on plans.
Pflugerville has grown from roughly 4,000 people in 1990 to over 70,000 today, and almost all of that housing stock is post-2000 production tract construction. That matters when you’re adding on. We’ve worked through Blackhawk, Springbrook, and the neighborhoods off Weiss Lane long enough to know which lots have the clay that fights a new footing and which existing slabs are actually worth building against. The ground under your house is a bigger factor in your addition budget than most people expect, and we address it on day one, not halfway through framing.
Why Barrett & Sons Construction Is Pflugerville’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998, and his sons run the crews that work in Pflugerville. That’s not marketing language. When you hire us, the person who shakes your hand at the estimate is related to the person swinging the hammer. On a project the size of an addition or ADU, which runs eight to twenty weeks, that continuity is the difference between a job that stays on schedule and one where the crew changes three times and nobody remembers what was said in week two.
Pflugerville homeowners have called us for everything from a 500-square-foot primary suite addition to a full detached ADU behind a house in Blackhawk. The 90-Day Done Right Promise is written on every contract. If something’s not right, one call brings Tom back. We also don’t hide pricing. Every scope, every allowance, every change order arrives as a written document before work proceeds, because the allowance that isn’t on paper is a surprise waiting for a date. And you can look up Tom’s name, address, and license number yourself before you sign anything.
We’re not the cheapest option in Pflugerville, and we’re fine saying that out loud. The homeowners who call us are usually the ones who already tried the cheapest option once. They understand why permits get pulled on every eligible job and why the permit inspector works for them, not for us.
Our Home Additions & ADU Services in Pflugerville
ADU Design & Permitting
Designing an ADU in Pflugerville means working within the city’s code for accessory dwelling units, which includes setbacks, height limits, and utility connections specific to your lot’s zoning. We handle the full Home Additions & ADU process, from first sketch through city submittal, and we pull every permit ourselves. Your plans never sit in a folder waiting on you to find a drafter.
Garage Conversion ADU
Garage conversions in Pflugerville run $30,000 to $80,000 and are the most popular ADU route in tracts where lots are tight and a detached structure won’t clear setbacks. Many of the early-2000s homes in this market have oversized two-car garages that never get used for cars anyway. We convert the slab, run new electrical and plumbing, add insulation and drywall, and turn that space into a rentable unit or a private suite for family.
New Detached ADU
A new detached ADU in Pflugerville runs $90,000 to $220,000 depending on size, finishes, and what the soil requires. This is where the clay really matters. The highly expansive Taylor marl and Houston Black clay under Pflugerville shrinks and swells with every wet-dry cycle, so we design footings and slab prep for the ground you actually have, not the ground a national plan assumes you have. We also coordinate the utility trenching and meter work so the ADU is a real separate unit, not a shed with a bed in it.
Junior ADU & Interior Conversion
Not every Pflugerville homeowner needs a full second unit. A junior ADU, which is typically a converted interior space with its own entrance, kitchenette, and bath, runs $45,000 to $90,000 depending on scope. We’ve converted dining rooms, bonus rooms, and the occasional oversized master retreat into legal, rentable space without touching the exterior footprint. The kitchen and bath portions are jobs we handle in-house, and if the opening leads naturally toward a full remodel, know that we also handle Kitchen Remodeling in Pflugerville and Bathroom Remodeling in Pflugerville at the same standard.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Pflugerville
When your addition or ADU calls for new windows, doors, or exterior materials, we install brands you can look up. On Pflugerville additions, that frequently means Simonton windows, Ply Gem siding and trim, or PGT impact-rated options where exposure calls for it. We don’t stock mystery brands off a van. Your quote names the exact product line before we order, so you can read the spec sheet and know what’s going on your house.
Common Home Additions & ADU Problems We See in Pflugerville Homes
- Slab movement from expansive clay. Pflugerville sits on some of the most active soil in Central Texas, and we regularly see post-tension slabs that have moved enough to affect the attachment point where an addition meets the existing structure. Any load-bearing addition here starts with a foundation assessment, not a saw.
- Tract-home framing that doesn’t match the plan. Homes in Blackhawk and similar subdivisions were built at speed by national builders, and interior dimensions don’t always line up with what the original plans claim. We measure, remeasure, and verify before an addition is tied in.
- Builder-grade materials aging out at the same time. Whole neighborhoods of same-vintage homes are now hitting the point where original OSB sheathing, windows, and roofing are failing simultaneously. An addition is the right time to address the adjacent wall, not just the new part.
- Setback confusion on corner and cul-de-sac lots. Pflugerville’s subdivision plats create odd shaped lots on curves and corners, and what fits on a straight interior lot often won’t clear setbacks on a cul-de-sac. We check the plat and the zoning before you commit to a footprint.
Pricing for Home Additions & ADU in Pflugerville, TX
A full home addition in Pflugerville runs $45,000 to $130,000. That range covers everything from a modest room bump-out to a primary suite or second-story addition. Detached ADUs run $90,000 to $220,000, garage conversions run $30,000 to $80,000, and a junior ADU or interior conversion typically lands between $45,000 and $90,000. What moves you inside those ranges is square footage, foundation work the soil demands, kitchen or bath counts inside the new space, and whether you’re tying into existing systems or running new utility service. Estimates are free. Call (877) 610-1318 and we’ll give you a written, line-item number before any work is scheduled.
We Also Serve Cities Near Pflugerville
Beyond our Home Additions & ADU in Pflugerville work, Barrett & Sons crews regularly take on projects in Wells Branch, Hutto, Brushy Creek, and Anderson Mill. If you’re just outside the city line, give us a call. The same crew, the same written change orders, and the same 90-Day Done Right Promise apply no matter which side of the county line you’re on.
Serving Pflugerville, TX - Our Local Coverage Area
We’re based in the Pflugerville 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 - Home Additions & ADU in Pflugerville
Most Pflugerville additions and ADUs move from signed contract to first day of framing in three to five weeks, which accounts for permit submittal and the city’s plan review timeline. The fastest path is to call us before you commit to a design, so we can flag site issues like clay soil and setback constraints early. Call (877) 610-1318 to get your free estimate scheduled.
Yes, we work across Pflugerville including Blackhawk, Springbrook, and the areas along Weiss Lane and Pflugerville Parkway, covering both 78660 and 78691. Crews serving Pflugerville are coordinated from our Austin office, but the people on your job live and work in this area. We don’t send a stranger from across the state.
No, not without your signature. Any change to scope, allowances, or materials is a written change order that you approve before work proceeds. That’s a Barrett & Sons rule on every Pflugerville job, because the allowance that isn’t on paper is a surprise waiting for a date. Call (877) 610-1318 for a written estimate before you commit.
A detached ADU in Pflugerville runs $90,000 to $220,000, which is consistent with Hutto and Brushy Creek, but Pflugerville’s expansive clay often means more foundation prep than a city with more stable soil. That’s not a markup we invent. It’s the cost of doing the footing correctly the first time. The estimate we give you includes that work.
Every Barrett & Sons job in Pflugerville carries the written 90-Day Done Right Promise. If something isn’t done right, one call brings Tom back to make it right. We don’t hand you a warranty card and hope you lose it. Call (877) 610-1318 and we’ll make it right.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Pflugerville since day one of the housing boom he’s been fixing behind.