Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Home Additions & ADU Across Aransas Pass
If you’re weighing a room addition or an ADU here in Aransas Pass, you’re probably looking at a home that’s either a pre-Harvey bungalow in need of serious work or a newer elevated build that doesn’t quite have the space you need. The honest price range we see most often is $45,000-$130,000 for an addition and $90,000-$220,000 for a detached ADU, and TWIA windstorm requirements shape nearly every structural decision. That’s the reality of building in this town, and we’ve been navigating it since 1998. Call (877) 610-1318 and we’ll give you a straight answer on what your project will take.
Why Barrett & Sons Construction Is Aransas Pass’s Preferred Home Additions & ADU Company
Tom Barrett puts his name, address, and license number out in the open, and around Aransas Pass that’s worth a lot. We’re the owner-operated crew that shows up in uniform, answers the phone with a live person, and puts every scope and allowance in writing before a single nail moves. The folks we work for in the 78335 and 78336 zip codes have seen enough contract games to know the difference.
We’ve worked through the rebuild years here, and that means we understand what TWIA inspectors flag, where the FEMA flood maps pushed finished floors, and why marine-grade hardware matters on a channel-front street. That’s not something a national outfit learns from a dispatch screen. When you call (877) 610-1318, you reach someone who’ll be honest about your permit path, your timeline, and your price.
Our Home Additions & ADU Services in Aransas Pass
ADU Design & Permitting
An accessory dwelling unit in Aransas Pass almost always has to answer to TWIA windstorm requirements and the latest FEMA flood maps. We pull permits, run the wind-load framing and connector details past the inspector, and handle the paperwork so you don’t get stalled at close-out. For lots in AE or VE zones, we design to the base flood elevation that applies to your specific parcel.
Garage Conversion ADU
Converting a garage into a livable unit runs $30,000-$80,000 in this market, and the local wrinkle is foundation and wind-load. Many older Aransas Pass garages sit low to grade, and tightening up the structure to meet current code often means supplemental shear walls and anchor work. We’ve done enough of these to spot problem framing early and correct it before it becomes a failed inspection.
New Detached ADU
A brand-new detached ADU in Aransas Pass runs $90,000-$220,000, and the elevated pier systems you see around town exist for a reason. Finished floors often need to sit 2-4 feet above base flood elevation, and some builds go 8-10 feet off grade. Anchor-bolt placement and shear transfer at the top of those piers is exactly where TWIA inspectors get particular, so we build it right the first time.
Junior ADU & Interior Conversion
When the space already exists inside the home, a junior ADU or interior conversion is often the most budget-friendly route. We see a lot of these in older 1950s-1970s bungalows where a larger bedroom or bonus area can become a separate living space with its own entry. The work is less about foundation and more about egress, kitchenette plumbing, and separation walls, and we handle that coordination in-house.
Every permit gets pulled, every inspection gets signed, and every price change arrives as a written change order before work proceeds. That’s the way Tom Barrett has run this company since 1998, and it’s why people in Aransas Pass recommend us to their neighbors. We also handle Kitchen Remodeling in Aransas Pass and Bathroom Remodeling in Aransas Pass when an addition is part of a larger plan.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Aransas Pass
We don’t install mystery materials off the back of a van. On hardscape and paver work tied to additions in this area, we regularly use Techo-Bloc and Cambridge Pavers, because they hold up in the salt-laden air coming off the ship channel. We keep common replacement stock close for Aransas Pass customers, and when materials need to be ordered, we know the local supply timelines so your project doesn’t idle.
Home Additions & ADU Ideas for Aransas Pass Homeowners
If you’re not sure what shape your addition should take, here are the scenarios we encounter most often around town:
- Aging-in-place suite for parents: A first-floor bedroom and bath addition gives older family members independence without stairs. We see these in the Heritage Park and McCampbell Ranch areas where extended families stay close.
- Income-producing detached ADU: With Aransas Pass rebuilding as a coastal destination, a detached unit can rent to traveling nurses, visiting anglers, or seasonal workers. TWIA compliance and flood-elevation design are the two things that make or break these projects.
- Post-Harvey rebuild expansion: Many homeowners who rebuilt smaller after 2017 now have growing families or different needs. We can add square footage that respects the elevated foundation you already have.
- Sunroom or enclosed patio along the ship channel: The view is part of why people live here. We build enclosed patios and sunrooms with marine-grade fasteners and UV-rated glazing so the salt air doesn’t eat the hardware.
Common Home Additions & ADU Problems We See in Aransas Pass Homes
- Elevated foundations with sloppy shear transfer: Post-Harvey homes on concrete piers sometimes have weak connections where the floor system meets the top of the piers. TWIA inspectors flag these hard, and fixing them after the fact costs more than doing it right initially.
- Salt corrosion on exposed hardware: Constant onshore wind off the ship channel corrodes standard fasteners and metal connectors faster than inland builders expect. Using stainless or marine-grade hardware from the start saves years of maintenance.
- Older bungalows with undersized footings: The 1950s-1970s pier-and-beam stock that survived Harvey often lacks the footprint support current code requires for heavier additions. We assess and reinforce before framing begins.
- Windows and doors that leak wind-driven rain: Aransas Pass gets Gulf storms that push rain sideways. Improper flashing or non-impact-rated openings fail quickly here, which is why we bring brands like Andersen and Marvin into the conversation.
Pricing for Home Additions & ADU in Aransas Pass, TX
Here’s what we’re quoting in Aransas Pass right now:
- Room addition: $45,000-$130,000
- Detached ADU construction: $90,000-$220,000
- Garage conversion ADU: $30,000-$80,000
- Junior ADU or interior conversion: typically $25,000-$75,000 depending on plumbing and egress scope
What moves the number most in this city is your flood zone and your TWIA requirements. An elevated pier system in a VE zone costs more than slab work in an X zone, and impact-rated openings add real money but are often non-negotiable for insurance. We put every allowance and every scope in writing, and we never come back at the end with a surprise invoice. Call (877) 610-1318 for a free estimate that respects your time.
We Also Serve Cities Near Aransas Pass
Our crews live and work in the Coastal Bend, so we also cover Aransas Pass neighbors in Ingleside, Portland, Rockport, and Corpus Christi. If you’re just over the bridge or a few miles up the coast, we can be there quickly and quote your project with local knowledge of the same wind and flood standards.
Serving Aransas Pass, TX - Our Local Coverage Area
We’re based in the Aransas Pass 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 Aransas Pass
A home addition in Aransas Pass typically runs $45,000-$130,000, with detached ADUs ranging $90,000-$220,000. Your flood zone, foundation type, and TWIA windstorm requirements move the number more than anything else. We provide written line-item quotes and change orders before any scope shift, so call (877) 610-1318 for an exact price on your lot.
Yes, we pull permits on every eligible job, and that includes TWIA windstorm compliance and FEMA flood elevation documentation for ADUs in Aransas Pass. The permit inspector works for you, not for us, which is why we treat inspections as a checkpoint rather than an obstacle. We make sure the paperwork is in order before we ask for the close-out signature.
A detached ADU in Aransas Pass typically takes 5-9 months from permit application to final inspection, while a garage conversion often runs 3-5 months. TWIA plan review and pier-and-beam foundation work add time, but we sequence work to keep the job moving. We’ll give you a written timeline at the estimate.
Every project comes with the 90-Day Done Right Promise, written on the contract, not buried in fine print. If something isn’t right, Tom Barrett comes back and makes it right, one call. That applies to every job in Aransas Pass, Ingleside, Portland, Rockport, and Corpus Christi.
Yes, we work on post-Harvey elevated construction regularly and understand the shear-transfer and anchor-bolt details TWIA inspectors require on tall concrete pier systems. We also work on the older 1950s-1970s bungalows that survived the storm and need pier-and-beam reinforcement. Call (877) 610-1318 and tell us what you’re starting with.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Aransas Pass since 1998.