Home Additions & ADU in Fort Myers Beach, FL | Barrett & Sons Construction - Barrett & Sons Construction

Home Additions & ADU in Fort Myers Beach - One Fixed Price, Permits Handled

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

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Fast, Reliable Home Additions & ADU Across Fort Myers Beach

If you own property in Fort Myers Beach right now, you likely already know the hard truth: Hurricane Ian didn’t just damage homes on Estero Island, it rewired what “remodeling” even means here. Adding a bedroom, building an ADU, or restoring a sunroom isn’t a matter of matching old drywall and calling it done. It means meeting FEMA’s 50% rule, building to elevated VE and AE flood zone standards, and often satisfying Florida’s Coastal Construction Control Line on top of Lee County’s own permits. That’s the daily reality of the Home Additions & ADU work we take on. If you’ve been told your addition can’t be done, or that the permitting alone will take nine months, call us at (877) 610-1318. We walk Fort Myers Beach jobs from the first elevation certificate to the final inspection, and we do it with written change orders, not surprises.

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Why Barrett & Sons Construction Is Fort Myers Beach’s Preferred Home Additions & ADU Company

Tom Barrett started Barrett & Sons Construction in 1998, and the way he runs it hasn’t changed since: his name is on the truck, his sons run the crews, and every permit gets pulled before the first nail moves. That matters on Fort Myers Beach more than almost anywhere else in Florida, because the last thing a homeowner here needs is a contractor who treats a CCCL setback line as optional. Tom’s phone number is published, his address is verifiable, and his license number is there for you to look up before you sign anything.

We can’t claim to have rebuilt every block of Fort Myers Beach, and we won’t. What we can tell you is that the work we’ve done on the island has taught us things you only learn by standing in a flooded ground-level cottage in zip code 33931 and figuring out how to lift it, re-level it, and add living space above the BFE. Our crew knows what the Lee County permit office asks for on addition projects in Fort Myers Beach, and we know why the Florida DEP review adds weeks even when the paperwork is perfect. That local knowledge is the difference between a permit that moves and a permit that sits.

Every Fort Myers Beach project we take on carries the 90-Day Done Right Promise in writing. If something isn’t right when the job’s done, one call brings Tom back. That’s the kind of guarantee that means something on a barrier island where salt air finds every weak fastener and storms test every tie-down.

Our Home Additions & ADU Services in Fort Myers Beach

For property owners in Fort Myers Beach, an addition or ADU is rarely a simple bump-out. You’re often working with a post-Ian lot, a partially elevated home, or a concrete block cottage from the 1960s that no longer fits the flood map. These are the four services we handle most often on the island:

ADU Design & Permitting

Building an accessory dwelling unit on Estero Island means stacking permits: Lee County building, FEMA elevation compliance, and in many cases a Coastal Construction Control Line review through Florida DEP. We design ADUs that work within those rules from the first sketch, so you don’t pay an architect for a plan the county won’t approve. A detached ADU in Fort Myers Beach typically starts with a site survey and an elevation certificate, and we handle both before drawings even go to plan review.

ADU Design & Permitting

Garage Conversion ADU

Converting an existing garage into a living unit sounds straightforward until the flood zone rules apply. In Fort Myers Beach, many pre-Ian garages sit below the required base flood elevation, which means the conversion often triggers substantial-improvement math. We’ve done enough of these to tell you honestly on day one whether your garage conversion is worth the cost or whether it’ll cross the 50% threshold and require raising the structure. In zip code 33931 and 33932, that threshold is the single most important number on your project.

Garage Conversion ADU

New Detached ADU

New detached ADUs in Fort Myers Beach are, by local necessity, elevated structures on pilings, with breakaway walls below the flood line and all mechanicals installed above BFE. That’s not an upsell or a “nice-to-have”; it’s the building code on a barrier island. We budget for helical or driven piles, hidden tie-downs, and flood vents from day one, which keeps your number honest. If a builder hands you a detached ADU quote that prices it like a mainland shed, ask them whether they’ve ever pulled a permit on Estero Island.

New Detached ADU

Junior ADU & Interior Conversion

A junior ADU, usually an interior conversion of a large bedroom or a former Florida room, works well for Fort Myers Beach owners who want rental income or a caregiver suite without the full cost of a separate structure. The trick here is compliance with Lee County’s floor-area limits and egress rules, plus making sure the conversion meets current wind-load requirements for windows and doors. We also handle Kitchen Remodeling in Fort Myers Beach and Bathroom Remodeling in Fort Myers Beach as part of these conversions, because a junior ADU with a half-bath and a kitchenette has to be permitted and inspected to the same standard as a full unit.

Junior ADU & Interior Conversion
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What happens when you call

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    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    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 Fort Myers Beach

On an island where salt spray eats cheap metal and UV bakes paint off a wall in two years, material choice isn’t marketing. We install Techo-Bloc and Cambridge Pavers on ADU driveways and patio landings because their pavers hold up to stormwater and sand better than big-box alternatives. For concrete work under elevated additions, we rely on Quikrete and Oldcastle mixes rated for coastal exposure. We know which products the Lee County inspectors recognize, and we don’t put mystery materials on a Fort Myers Beach job just to shave a week off the schedule.

Common Home Additions & ADU Problems We See in Fort Myers Beach Homes

  • The 50% rule rears its head mid-project. A homeowner starts a room addition, the county flags the property for substantial improvement, and suddenly the whole project scope changes. We run the math before you commit to a design, not after the first wall comes down.
  • CCCL permits weren’t budgeted into the quote. Many Fort Myers Beach parcels fall seaward of the Coastal Construction Control Line, meaning a separate Florida DEP permit rides on top of Lee County’s. A mainland contractor may not even know that permit exists. We do, and we price it from day one.
  • Salt-damaged subfloor and rim joists under older elevated homes. Pre-Ian cottages that got lifted but never properly re-flashed now show hidden corrosion where the floor system meets the new pilings. We inspect before we add square footage, because you don’t want a new room anchored to a rotten rim.
  • Wind-load failures on existing walls and windows. Florida Building Code requires High-Velocity Hurricane Zone connections along the entire addition, including tie-downs to the existing structure. If the old part of the house wasn’t strapped correctly, it must be retrofitted before the addition is signed off.

Pricing for Home Additions & ADU in Fort Myers Beach, FL

A home addition in Fort Myers Beach typically runs $45,000 to $130,000 depending on square footage, piling requirements, and where your parcel sits relative to the CCCL. A detached ADU designed and built to current VE or AE zone standards on Estero Island tends to land between $90,000 and $220,000. Garage conversions are usually $30,000 to $80,000, though a conversion that triggers the 50% rule can push past that figure once elevation and piling work enters the picture. If you’re comparing bids, ask whether the number includes the elevation certificate, the DEP review if required, and the wind-load retrofits on the existing structure. Ours does. Call (877) 610-1318 for a free estimate with every allowance in writing, because an allowance that isn’t on paper is a surprise waiting for a date.

We Also Serve Cities Near Fort Myers Beach

While most of our Fort Myers Beach work stays on the island, we regularly take on addition and ADU projects in nearby Iona, Cypress Lake, McGregor, and Villas. The flood rules change once you cross the bridge toward the mainland, but the same standards apply: permits pulled, elevations verified, and every change order in writing. If you’re in the greater Fort Myers Beach area and you’re weighing an ADU, call us before you sign a mainland bid that doesn’t understand island rules.

Serving Fort Myers Beach, FL - Our Local Coverage Area

We’re based in the Fort Myers Beach 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 Fort Myers Beach

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What happens when you call

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    A real person answersNo phone trees - talk to a local construction pro.
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    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
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    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
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    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Los Angeles Customers Say

Trusted by homeowners across Los Angeles and surrounding areas.

★★★★★

"Addition over the garage matched the original roofline and brickwork so closely that visitors do not realise it was added. He tracked down the closest brick he could find rather than settling."

Gideon Stroud · Verified customer
★★★★★

"The bathroom was finished on the day he said at the start, which nobody had led me to believe was possible."

Loretta Vanterpool · Verified customer
★★★★★

"His sons run the crews and they were in our house for four months. Not once did I feel I had to be home to keep an eye on things."

Camila Fuentes · Verified customer

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