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 Lantana
Home additions in Lantana typically cost between $45,000 and $130,000 depending on scope, footprint, and foundation work. That range is higher than surrounding towns because virtually every project here faces a two-step approval process that most contractors never mention until it’s too late. We know Lantana’s Architectural Review Committee requirements and Denton County’s permitting sequence cold, and we’ll walk you through both before you sign anything. Call (877) 610-1318 for a free estimate, and we’ll give you a written scope with real numbers, not a handshake.
Why Barrett & Sons Construction Is Lantana’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998 with a simple rule: he puts his name, his address, and his license number on every contract, and he answers his own phone. That matters in Lantana because most of the work we do here involves the Architectural Review Committee, and Tom has sat through enough ARC submissions to know what gets approved the first time and what gets kicked back.
Homeowners in Lantana’s neighborhoods off Lantana Trail and Jeter Road call us because they’ve been burned before by phone-quote outfits that show up with a different number. We don’t do that. Every allowance, every price change, every scope adjustment arrives as a written change order before a single nail moves. The permit inspector works for you, not for me. That’s why I like him.
Our crews are Tom’s sons and their teams, background-checked and uniformed, working in Lantana weekly. When you call, a live person answers. Not a voicemail box, not an out-of-state call center. And every job carries our written 90-Day Done Right Promise: if it’s not done right, Tom comes back and makes it right. One call.
Our Home Additions & ADU Services in Lantana
ADU Design & Permitting
An ADU in Lantana is not a simple backyard project. The Architectural Review Committee reviews every exterior elevation, material selection, and roofline, and that review happens before Denton County even looks at your structural drawings. We handle both. Our Home Additions & ADU team prepares drawings that anticipate ARC objections before submission, so you don’t burn three months waiting for a resubmission.
Garage Conversion ADU
Garage conversions in Lantana run $30,000 to $80,000, and the cost swings hard based on what’s behind the walls. Many homes built between 2005 and 2015 in the 76226 zip code have post-tension slab floors, and any plumbing trenching means locating tensioned cables with a scan before concrete cutting. Severing one cable causes irreversible structural damage. We scan first, every time.
New Detached ADU
Detached ADU construction in Lantana runs $90,000 to $220,000, and the big cost driver is Blackland Prairie clay. Lantana sits on highly expansive soil that shrinks in drought and swells after spring rain, which is why every new detached structure needs engineered piers or a slab design matched to the specific soil report for your lot, not a stock detail pulled from a template.
Junior ADU & Interior Conversion
A junior ADU is a kitchenette-and-bath addition carved from existing square footage, and for many Lantana homes it’s the fastest path to multi-generational living without touching the ARC. But “fast” still means permits. We pull them. If you’re also updating existing rooms, our Bathroom Remodeling in Lantana crew can rough in the new wet wall while the ADU framing goes up, and our Kitchen Remodeling in Lantana team handles the kitchenette. One contractor, one schedule, no finger-pointing between crews.
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 Lantana
We install materials you can look up. On Lantana projects we regularly spec Techo-Bloc and Cambridge Pavers for hardscape tie-ins where an addition meets the patio, and Quikrete products for post bases and flatwork repairs. We don’t haul mystery brands off a van and tell you they’re “contractor grade.” You’ll see the product name on your change order before you ever pay for it, and you can walk into any supply house in the Dallas-Fort Worth area and verify exactly what it costs.
Common Home Additions & ADU Problems We See in Lantana Homes
- Post-tension slab complications. Nearly every home in Lantana sits on a post-tension slab, and any new plumbing, anchor bolt, or footing penetration needs a cable scan first. Cutting a tensioned cable without locating it can destroy the slab’s structural integrity and voids the original builder’s engineering specs.
- ARC review stalls. The Architectural Review Committee here reviews exterior changes that neighboring towns don’t even regulate. We’ve seen additions delayed four months because a window mullion profile didn’t match the original elevation. We submit drawings that address those objections before the first review.
- Clay soil movement. Blackland Prairie clay expands and contracts more aggressively than most of Denton County, and Lantana’s 2000s-era slabs are showing early signs of that stress. Before we design an addition, we check existing slab conditions so the new structure doesn’t inherit a problem the old one already had.
- Winter Storm Uri damage that never got fixed right. The 2021 ice event exposed weaknesses in exterior envelopes and mechanical chases across Lantana’s build-out era. If your addition ties into a wall that froze during that storm, we’ll check what’s behind the sheathing before we frame against it.
Pricing for Home Additions & ADU in Lantana, TX
A single-room home addition in Lantana runs $45,000 to $80,000, a larger multi-room addition $80,000 to $130,000, and a detached ADU $90,000 to $220,000. Garage conversions land between $30,000 and $80,000. What moves the number here more than anything is the foundation: post-tension slab scanning, engineered piers for clay soil, and ARC-compliant exterior materials all add cost that a generic quote from an out-of-town contractor simply leaves out, then bills you for later. We don’t leave anything out. You’ll get a written line-item estimate before you decide, and any change to that scope comes as a written change order. Call (877) 610-1318 to schedule your free estimate.
We Also Serve Cities Near Lantana
We work throughout the Lantana area and in the surrounding communities of Flower Mound, Highland Village, Corinth, and Trophy Club. If you’re a few minutes down FM 407 or across the county line, the same crew and the same written-scope process apply. We coordinate scheduling from our Dallas-Fort Worth office, and our crews serve Lantana locally.
Serving Lantana, TX - Our Local Coverage Area
We’re based in the Lantana 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 Lantana
We schedule estimates in Lantana every week, and we coordinate from our Dallas-Fort Worth office so the same person who estimates your job is the person who runs it. Call (877) 610-1318 and we’ll get you on the calendar for a free estimate. No trip charge inside the county.
Yes. We prepare the drawings, submit to the Architectural Review Committee, and respond to committee questions. That’s part of our Home Additions & ADU permitting work, and it’s why Lantana homeowners hire us over contractors who’ve never sat through an ARC review here.
A detached ADU in Lantana runs $90,000 to $220,000, which is comparable to Flower Mound and Highland Village. What’s different here is the dual approval layer: the ARC review adds time and design constraints that most neighboring towns don’t have, and that costs planning hours on the front end, not surprises on the back end. We quote it honestly up front.
Yes, on every eligible job. Denton County permitting plus Lantana’s ARC review means two layers of approval, and we handle both. The permit inspector works for you, not for me. That’s why I like him. Nobody on our crew will ever tell you permits are optional.
Every completed job carries our written 90-Day Done Right Promise. If it’s not done right, Tom Barrett comes back and makes it right. One call to (877) 610-1318.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Lantana since our first project there under the ARC review system.