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
Adding square footage or building an ADU in Aransas Pass isn’t a casual remodel job. You’re working against salt air that eats standard hardware, windstorm codes shaped by Hurricane Harvey’s 2017 landfall, and flood maps that have pushed finished floors 2 to 4 feet above grade in neighborhoods like Conn Brown Harbor and along McMullen Road. Barrett & Sons Construction handles the full scope of Home Additions & ADU work here, from TWIA-compliant framing to elevated pier foundations, and we do it with written change orders, permits pulled, and the 90-Day Done Right Promise on every contract. For a straight answer and a free estimate, call (877) 610-1318.
Why Barrett & Sons Construction Is Aransas Pass’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998, and his sons run the crews that show up in Aransas Pass. That means the name on the truck is the name on the permit, and the person you shake hands with is the person who returns if anything needs fixing under our 90-Day Done Right Promise. We don’t dispatch strangers, and we don’t hand work to unknown subcontractors who’ve never built in a salt-spray environment.
Local homeowners here recall what happened after Harvey, when out-of-town companies flooded the rebuild market and left a trail of loose change orders and failed TWIA inspections. We saw that too, and we built our process around what Aransas Pass actually demands: written scopes before work starts, written change orders before any allowance shifts, and inspections signed on every eligible job. The permit inspector works for you, not for us, and that’s the way we like it.
Our Home Additions & ADU in Aransas Pass work carries the same guarantee we give everywhere: if it’s not done right, one call brings Tom back. No fine print, no runaround. For more on how we serve this community, see our Aransas Pass page.
Our Home Additions & ADU Services in Aransas Pass
ADU Design & Permitting
Aransas Pass has a patchwork of pre-Harvey pier-and-beam bungalows and post-2017 elevated rebuilds, which means an ADU that works on one lot can be completely wrong for the lot next door. We handle the design, the engineered drawings, and the full permitting path, including the documentation TWIA inspectors want to see when they walk the job. If your lot sits in an AE or VE flood zone after the FEMA map revisions, we design the elevated floor height into the plan from day one, not as an afterthought.
Garage Conversion ADU
Garage conversions in Aransas Pass often start with a structure built before current wind-load standards. That means re-framing to meet current connector and anchorage requirements before any finished space goes in. We quote the full scope in writing, including structural upgrades, insulation, and any utility work, so there’s no surprise line item at close-out. A garage conversion here typically runs $30,000 to $80,000 depending on whether we’re reinforcing an existing slab or razing and rebuilding.
New Detached ADU
New detached ADUs in Aransas Pass follow the same elevated-construction logic as new homes. We build on concrete piers or taller pier systems where FEMA’s revised maps require it, and we specify stainless or marine-grade fasteners throughout because the onshore salt wind from the ship channel will find substandard hardware within a few seasons. A new detached ADU in this market generally runs $90,000 to $220,000, with the biggest variables being foundation height, utility trenching, and TWIA-required opening protection.
Junior ADU & Interior Conversion
When the addition fits inside your existing footprint, we’re adapting old framing to new use. That’s common in Aransas Pass, where homes from the 1950s through 1970s offer room counts that don’t match what a multigenerational household needs today. We check shear walls, anchor points, and the existing roof-to-wall connections before we frame a single interior wall. Pricing for a junior ADU or interior conversion here usually lands between $45,000 and $130,000, depending on how much structural correction the original house needs. If you’re already rethinking the rest of the home, we also handle Kitchen Remodeling in Aransas Pass and Bathroom Remodeling in Aransas Pass, which often makes sense to bundle with an addition while the crew and permits are already in motion.
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 foundation-adjacent work around Aransas Pass, we commonly specify Techo-Bloc and Cambridge Pavers, plus Oldcastle components where the job calls for it. These are brands you can look up, with published specs that hold up under coastal conditions. And because salt corrosion accelerates inspection cycles here, we keep replacement hardware and common fasteners on hand for our Aransas Pass jobs, which keeps a punch-list correction from turning into a three-week wait.
Common Home Additions & ADU Problems We See in Aransas Pass Homes
- Corroded fasteners and flashing from salt wind: The constant onshore breeze off the ship channel between Corpus Christi Bay and the Gulf works through standard galvanized hardware in a few years. We walk existing additions and find rusted straps, failing roof-to-wall connectors, and rotted opening flashing more often in Aransas Pass than anywhere else we work.
- Failed TWIA inspections on elevated pier systems: The post-Harvey rebuild standard means some homes sit 8 to 10 feet off grade on concrete piers. Anchor-bolt placement and shear transfer at the top of those piers get flagged hard by TWIA inspectors, and a failed inspection stops the whole close-out. We’ve corrected enough of those to get the details right the first time.
- Undersized foundations for new loads: If you’re adding a second story to a 1960s pier-and-beam bungalow, the original piers were never sized for that load. We see this constantly in Aransas Pass, where pre-Harvey housing stock was modest and never intended for vertical additions. The fix is structural, permitted, and documented, not a guess.
- Flood-zone surprises after FEMA map revisions: A lot that was fine on the 2008 map can now sit in an AE zone, meaning finished floors need to rise 2 to 4 feet. Homeowners often learn this after buying plans from an out-of-town designer who never checked the current Aransas Pass flood panel. We check it before we draw, because the permit counter will check it whether we do or not.
Pricing for Home Additions & ADU in Aransas Pass, TX
Home additions in Aransas Pass typically run $45,000 to $130,000 depending on square footage, foundation type, and whether we’re tying into existing framing or building stand-alone. A full detached ADU runs $90,000 to $220,000, and a garage conversion lands between $30,000 and $80,000. The biggest cost drivers here are elevation requirements, TWIA-mandated opening protection, and marine-grade hardware, all of which we line-item in writing before work starts. Every scope, every allowance, every price change arrives as a written change order, so the final invoice matches the number you approved, not a number that grew quietly. Call (877) 610-1318 for a free estimate and we’ll walk the property with you, answer questions about your specific flood zone, and put the numbers on paper the same visit.
We Also Serve Cities Near Aransas Pass
Our crews work regularly in Aransas Pass and the surrounding coastal communities. If you’re in Ingleside, Portland, Rockport, or Corpus Christi, the same team handles your addition or ADU with the same written process and the same 90-Day Done Right Promise. The salt air and windstorm codes don’t change much across the bridge, and neither does our pricing discipline.
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 costs $45,000 to $130,000. A detached ADU runs $90,000 to $220,000, and a garage conversion falls between $30,000 and $80,000. Your final number depends on foundation elevation, square footage, and the level of finish you choose. Call (877) 610-1318 for a free estimate with line-item pricing in writing, no vague ranges and no phone-number roulette.
Yes, on every eligible job we pull permits and get inspections signed. In Aransas Pass, that also means producing documentation that satisfies TWIA windstorm requirements, because without windstorm insurance, many homeowners and lenders can’t close on the property. We treat the permit inspector as your protection, not an obstacle, and we handle the full paperwork path for you.
Only if you change the scope, and even then, the new price comes to you as a written change order before any additional work begins. We don’t do verbal allowances or surprise invoices at the end. The price on the contract is the price you pay for the scope on the contract, and anything else lands on paper first. Call (877) 610-1318 and we’ll show you what that looks like in practice.
A typical room addition runs 8 to 12 weeks once permits are in hand, and a detached ADU usually takes 4 to 6 months from foundation to final inspection. Aransas Pass has additional inspection layers because of TWIA and flood-zone requirements, so we schedule those checks into the timeline rather than letting them stall the job. We’ll give you a written schedule with your estimate, and we’ll update it the same way, in writing.
Every completed job carries our 90-Day Done Right Promise, written on the contract, not buried in fine print. If something isn’t done right within that window, one call brings Tom Barrett back to fix it. Beyond that, the materials we install carry their own manufacturer warranties, and we document everything so you know exactly who to call and when. For your free estimate, call (877) 610-1318.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Aransas Pass since 1998.