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 North Fort Myers
Home additions and ADU construction in North Fort Myers typically run from $45,000 for a modest room addition up to $220,000 for a fully permitted detached unit, and the single biggest variable is whether your lot sits in a post-Ian flood zone that requires an elevated foundation. That’s the honest starting point. If you live anywhere near the Caloosahatchee River corridor, in neighborhoods like Suncoast Estates, Tamiami Village, or along Bayshore Road, the flood map changed under your feet in 2022, and any contractor who pretends otherwise is about to cost you serious money. Call Barrett & Sons Construction at (877) 610-1318, and we’ll walk your specific parcel through what Lee County’s current elevation requirements mean before you sign anything.
Why Barrett & Sons Construction Is North Fort Myers’s Preferred Home Additions & ADU Company
Tom Barrett put his name on this company in 1998, and he’s never taken it off. That matters in North Fort Myers, where the post-Ian rebuild has attracted a wave of out-of-town crews who won’t be here when the next storm season starts. Tom lives in Southwest Florida, his sons run the crews, and when you call with a question at any hour, a live person answers, not a voicemail box. That’s the kind of thing people in the 33903, 33917, and 33918 ZIP codes tell us they couldn’t find anywhere else.
We’ve pulled permits on North Fort Myers ADUs and additions long enough to know that the elevation certificate, not the framing, is where projects live or die here. Lee County’s flood map revisions after Ian reclassified hundreds of parcels into AE or VE zones. Our team coordinates the surveyor, the engineer, and the permit review so the foundation design passes on the first submittal. We put every price change in writing as a change order before work moves, and every completed project carries our 90-Day Done Right Promise. If it’s not done right, Tom comes back and makes it right. One call.
Senior and veteran homeowners in North Fort Myers also get a permanent 10% discount, and we offer a free second opinion on any written estimate you’ve already received from another contractor. Bring us what they wrote. We’ll tell you straight whether the numbers and the elevation assumptions hold up.
Our Home Additions & ADU Services in North Fort Myers
The post-Ian housing stock in North Fort Myers is unique in Lee County. Tens of thousands of structures were destroyed or condemned after the storm surge channeled up the river, and a large share of those were manufactured homes and mobile homes built in the 1960s through 1980s. That means our work here runs heavily toward full rebuilds, elevated foundations, and aging-in-place conversions. Here’s what we do most.
ADU Design & Permitting
In North Fort Myers, the design and permitting phase for an ADU often costs more and takes longer than in neighboring Cape Coral or Fort Myers, and there’s a reason: FEMA’s post-Ian flood reassessment pushed many 33903 and 33917 parcels into AE or VE zones, which frequently triggers a Base Flood Elevation requirement three to four feet above the original slab. We handle the full submittal, the elevation certificate, the floodplain review, and the engineering coordination. If a contractor hands you a “stock” ADU plan without asking what flood zone your parcel is in, walk away.
Garage Conversion ADU
A garage conversion in North Fort Myers runs $30,000 to $80,000, but before any framing starts, we verify the slab elevation against current Lee County flood maps. Here’s the local reality: many pre-Ian slabs now sit below BFE. You cannot get a permit on a below-BFE slab without significant design changes, like raising the finished floor or, in some cases, abandoning the conversion and going to piers. We’ve seen homeowners pay for drawings that failed permit review on day one because no one checked the new flood zone. We check it first.
New Detached ADU
New detached ADUs in North Fort Myers typically run $90,000 to $220,000, including the elevated foundation work that this market demands. We framed a detached ADU off Bayshore Road for a couple in a 55-plus community whose 1970s mobile home was condemned after Ian. The new accessory unit went on piers to meet the BFE, with a Kohler walk-in shower, blocking for grab bars, and low-maintenance fiber-cement siding. Our crew pulled permits, handled the elevation certificate, and got inspection sign-off before the rough-in was covered. The owners had one surprise, the building department had none, and the walk from the bedroom to the bathroom is now zero-threshold.
Junior ADU & Interior Conversion
Interior conversions, like turning a spare bedroom into a junior ADU with a kitchenette and accessible bath, are usually the most affordable path for aging-in-place additions in North Fort Myers. Because the work stays inside the existing footprint and doesn’t touch the foundation, the post-Ian flood elevation rules often don’t apply the same way they do for new detached structures. That said, the 55-plus communities across North Fort Myers have their own accessibility expectations, and we build to them: wider doorways, zero-threshold showers, blocking for grab bars, slip-rated flooring. A junior ADU here frequently becomes the long-term primary bedroom for a homeowner who no longer wants to navigate stairs.
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.
Common Home Additions & ADU Problems We See in North Fort Myers Homes
- Post-Ian flood zone surprises on garage conversions. Many homeowners start a garage conversion only to find the existing slab sits below current BFE and the permit dies at review. We verify flood zone status before you pay for any drawings.
- Designs that ignore 55-plus accessibility requirements. Standard door widths and no wall blocking don’t work in the retirement communities scattered across North Fort Myers. We frame for wider openings and install blocking for grab bars from day one, so you’re not paying for retrofits later.
- Hidden surge damage behind intact walls. Ian’s surge inundated homes miles inland from the river. We’ve opened walls on North Fort Myers additions and found framing rot and load-bearing damage that looked fine from the outside. A good contract has written contingency language for this, not a verbal promise.
- Underestimating elevation costs on new builds. A foundation raised three to four feet for BFE compliance changes everything: pier depth, fill, stairs, access ramps, and the structural engineering. We price the elevation before the contract, so the number you sign is the number you pay.
Pricing for Home Additions & ADU in North Fort Myers, FL
Here are the numbers we quote most often in North Fort Myers, based on current Lee County permit requirements and post-Ian flood elevation work:
| Project | Typical Range in North Fort Myers |
|---|---|
| Home Addition | $45,000-$130,000 |
| Garage Conversion | $30,000-$80,000 |
| ADU Construction | $90,000-$220,000 |
What moves the number the most in North Fort Myers is the foundation. If your parcel sits in an AE or VE flood zone and the new structure must be elevated three to four feet above the slab, you’re looking at tens of thousands in piers, fill, and engineering that a homeowner on higher ground in Fort Myers Shores won’t face. The finishes you choose matter too, Simpson and Ply Gem windows, a Kohler accessible shower, fiber-cement siding, all of it lands in the written allowance sheet. Call (877) 610-1318 and we’ll put a real, line-item estimate in front of you. Free, and good for your whole planning process.
Trusted Brands We Service in North Fort Myers
We install premium materials you can look up before you spend a dollar. On North Fort Myers ADUs and additions, we regularly use Simonton impact windows, PGT hurricane-rated doors, and Ply Gem siding, all of which hold up better in a riverfront climate than the off-brand materials some out-of-town crews haul in. Because our crews live and work in the area, we order and stage materials locally, no waiting on a truck from two states away, and no mystery substitutions mid-project. Any product change arrives as a written change order. Always.
We Also Serve Cities Near North Fort Myers
Beyond North Fort Myers, our crews regularly work in Fort Myers Shores, Cape Coral, Villas, and Fort Myers. If you’re in one of those communities and planning a Home Additions & ADU project, the same permit-first, written-change-order approach applies. For readers in this area, you can also see our full North Fort Myers service page for local specifics.
Serving North Fort Myers, FL - Our Local Coverage Area
We’re based in the North Fort Myers 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 North Fort Myers
Yes, in most of North Fort Myers you do. When Hurricane Ian’s surge destroyed the original structure, the property lost its pre-FIRM grandfathered flood elevation status. A new ADU on the same parcel must meet current FEMA Base Flood Elevation for its flood zone, which in the 33903 and 33917 ZIP codes frequently means a finished floor three to four feet above the original slab, on piers or significant fill. This catches out-of-area contractors off guard on nearly every job. Call (877) 610-1318 and we’ll check your parcel’s current flood zone before you spend a dollar on design.
No. A carport conversion in North Fort Myers is a change of use that requires a building permit, and if your parcel is in a post-Ian AE or VE zone, the slab elevation will be scrutinized. Many carport slabs sit below BFE, which means the conversion may require raising the floor or moving to a pier foundation. Skipping the permit is how you end up with an uninsurable, unpermitted bedroom. Get a permit for every eligible job, that’s our standing policy.
In North Fort Myers, the most affordable path is usually an interior conversion inside the existing footprint, typically a spare bedroom or oversized closet converted into a zero-threshold bathroom with a shower pan instead of a tub. Because you’re not moving exterior walls or touching the foundation, the post-Ian flood elevation rules rarely apply, which saves tens of thousands compared to a new detached addition. Depending on layout and finish choices, a project like this typically runs $5,000 to $28,000. We’ve done this in the 55-plus communities across North Fort Myers many times, and the difference it makes for homeowners who no longer want to step over a tub wall is real. Call us at (877) 610-1318 and we’ll look at your floor plan with you.
Draw schedules on our North Fort Myers ADU projects are tied to completed, inspected milestones, not arbitrary calendar dates. A typical schedule looks like: deposit to begin, a draw after the foundation and piers pass inspection, a draw after the rough-in (framing, electrical, plumbing) passes, a draw after drywall and finishes, and a final draw after final inspection and sign-off. The elevated foundation work means the first inspection milestone is the elevation certificate and foundation inspection, and that’s where we spend the most time. Every draw is written into the contract before work starts. No surprises, because surprises here get expensive fast.
Usually not, because an interior junior ADU stays within the existing building envelope and doesn’t require new foundation work. In North Fort Myers, the elevated BFE requirements that complicate detached ADUs apply to new construction and substantial improvements. Converting an existing bedroom, adding a kitchenette and an accessible bath, does not typically trigger a foundation elevation requirement, which is exactly why it’s often the most cost-effective aging-in-place option in this market. That said, your lot’s specific flood zone still dictates whether the overall property needs flood openings or other retrofits. Call (877) 610-1318 for a free assessment. We’ll check your parcel and tell you straight what does and doesn’t apply.
Get Your North Fort Myers Home Addition or ADU Started Today
If you live in North Fort Myers and you’re planning any addition, ADU, garage conversion, or aging-in-place upgrade, call Barrett & Sons Construction at (877) 610-1318. We’ll send someone who knows the Lee County flood rules, checks your parcel’s current elevation status, and gives you a written estimate with real numbers. Free estimate, free second opinion on any other written estimate you have, no trip charge inside the county, and a permanent 10% discount for seniors and veterans. Tom Barrett puts his name on every job, and the 90-Day Done Right Promise is written on every contract. Call before you sign anything else.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving North Fort Myers and Lee County.