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 $45,000 to $220,000 depending on whether you’re adding a room or building a fully detached unit from scratch. The single biggest cost driver here isn’t square footage - it’s elevation. After Hurricane Ian, FEMA redrew the flood maps across Lee County, and thousands of North Fort Myers parcels in 33903 and 33917 now sit in AE or VE zones that require new construction to sit three to four feet above the original slab. That one change adds $30,000 to $60,000 in foundation work alone before framing starts, and it’s the reason we walk every North Fort Myers lot before quoting anything. Call (877) 610-1318 and Tom or one of his sons will come out, look at your parcel’s flood zone and elevation certificate status, and put real numbers in front of you.
Why Barrett & Sons Construction Is North Fort Myers’s Preferred Home Additions & ADU Company
Tom Barrett started this company in 1998, and his sons run the crews on North Fort Myers jobs. That’s not a slogan - it’s how we work. When you add a detached ADU off Bayshore Road or convert a garage in Suncoast Estates, the same faces show up every day until the permit inspector signs off. We publish Tom’s name, address, and license number. Look it up. Ask anyone in your 55+ community who they’d rather deal with: a phone number that routes to an out-of-state call center, or a guy who answers his own phone and lives twenty minutes away.
We’ve been through the post-Ian rebuild cycle in North Fort Myers since the day the water receded. That matters because this market isn’t normal construction. It’s demolition of condemned manufactured homes, elevation certificates on pre-FIRM slabs, and foundation redesigns that catch out-of-area contractors flat-footed. Our crews have handled enough of these to know what the Lee County permit reviewer will flag before we submit drawings, not after. Every change order on a North Fort Myers job arrives in writing before work proceeds. Every permit gets pulled. Every inspection gets signed. And every completed job carries our 90-Day Done Right Promise in the contract, not buried in fine print: if it’s not done right, Tom comes back and makes it right, one call.
Our Home Additions & ADU Services in North Fort Myers
Here’s what North Fort Myers homeowners actually call us for, and what each one involves in this specific market. The neighborhood you live in matters - a room addition on a concrete-block home off Pine Island Road is a different job than a new detached ADU on a former manufactured-home lot in 33917.
ADU Design & Permitting
Before a single nail moves, your ADU design has to clear Lee County’s post-Ian flood requirements. We handle the site survey, elevation certificate work, foundation design to meet BFE, and the full permit package. If your parcel in 33903 or 33917 was reclassified into an AE or VE zone after Ian, we design for that from day one. No surprises at the permit counter. No pile of materials sitting on your lot with no draw schedule.
Garage Conversion ADU
Converting an attached garage into a living unit in North Fort Myers runs $30,000 to $80,000, and the older your home, the more careful we have to be. Homes built in the 1960s through 1980s here often sit on slabs that no longer meet current elevation or freeboard standards. If a garage conversion triggers substantial improvement rules, Lee County may require foundation and flood mitigation work before we can finish the interior. We confirm all of that before you spend money on plans.
New Detached ADU
Detached ADUs in North Fort Myers run $90,000 to $220,000 all-in. The wide range comes down to foundation type - piers rise on a helical-pier or driven-pile system versus engineered fill - and how high the new BFE requires your finished floor to sit. We build single-level, zero-threshold designs for homeowners who want to age in place or house family. Slip-rated flooring, wide doorways, blocking for grab bars: all standard considerations, not upcharges.
Junior ADU & Interior Conversion
A junior ADU means a smaller, self-contained unit inside your existing home’s footprint - typically 300 to 600 square feet with its own entrance, kitchenette, and bath. In North Fort Myers’s 55+ communities, these are popular for adult children, caregivers, or seasonal guests. Because JADUs often reuse existing floor area, they may not trigger the same elevation and freeboard requirements as a new detached structure, which can keep your budget well under detached-ADU territory. We walk you through what Lee County will and won’t require on your specific parcel.
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 North Fort Myers
We install windows and doors from PGT and Simonton on North Fort Myers additions because both brands engineer for South Florida’s wind and water load codes. When you’re building a new ADU in a hurricane-prone corridor along the Caloosahatchee, the window spec isn’t cosmetic - it’s the difference between a unit that holds up in a named storm and one that doesn’t. We order directly from the manufacturers for North Fort Myers jobs, which keeps lead times shorter and ensures you get impact-rated products, not a substitute that looks close enough. Our Home Additions & ADU team specifies these brands because we’d be installing the same ones on Tom’s own house.
Common Home Additions & ADU Problems We See in North Fort Myers Homes
- Post-Ian flood zone elevation gaps. Contractors bid an addition using pre-Ian slab elevation, then the permit review flags the parcel in a new AE zone. The homeowner gets a $25,000-plus change order for fill and pier work they never planned for. We pull the flood zone data before quoting anything in 33903 or 33917.
- Lost pre-FIRM grandfathered status. A garage conversion starts on a 1970s concrete-block home, and mid-job the county stops work because the structure crossed the 50% substantial damage threshold after Ian and lost its pre-FIRM status. Now the whole project needs an elevation certificate and a foundation redesign. We confirm that status upfront.
- Manufacturer ADU kits that won’t pass permit review. A homeowner orders a pre-designed ADU kit, but Lee County rejects the permit because the design doesn’t include freeboard above BFE. Now there’s a pile of materials, no approved plans, and no draw schedule. We design around North Fort Myers’s actual flood requirements from the first drawing.
- Foundation type mismatched to soil and water table. North Fort Myers sits low, with a high water table and sandy soils along the river corridor. Slab-on-grade that worked fine in 1985 often won’t support the elevation gains now required. Helical piers or engineered fill solve it, but only if the foundation is designed for this ground, not copied from an inland job.
Pricing for Home Additions & ADU in North Fort Myers, FL
Here are the line-item ranges we quote in North Fort Myers right now. These reflect Lee County’s post-Ian permit and elevation requirements, current material costs from our suppliers, and our own labor - not a national average.
| Project Type | Typical Range in North Fort Myers |
|---|---|
| Home Addition | $45,000 - $130,000 |
| ADU Construction | $90,000 - $220,000 |
| Garage Conversion | $30,000 - $80,000 |
What moves the number most is your parcel’s flood zone and BFE. A detached ADU on a lot in a VE zone that needs piers and a finished floor four feet above grade lands at the top of the range. A room addition on a slab in a higher-elevation pocket of 33918 trends lower. We give you a written line-item quote before you commit - every allowance, every scope, every price change arrives as a written change order before work happens. That’s not a courtesy; it’s how Tom’s run this company since 1998. Call (877) 610-1318 for a free estimate, and ask us to walk the lot with you. We’ll show you exactly what your parcel’s flood zone means for the budget.
We Also Serve Cities Near North Fort Myers
Barrett & Sons serves North Fort Myers and the surrounding communities: Fort Myers Shores, Cape Coral, Villas, and Fort Myers proper. Scheduling for North Fort Myers jobs is coordinated from our South Florida office, and our crews work locally here every week. Wherever you are in Lee County, the same crew shows up, the same written change orders apply, and the same 90-Day Done Right Promise backs the work.
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 cases. If your parcel in 33917 was reclassified into an AE or VE zone after Hurricane Ian, any new detached ADU must have its finished floor elevated to meet the current Base Flood Elevation, which often means three to four feet above the original slab. We confirm your parcel’s exact flood zone and elevation requirement during the estimate process, not after the permit reviewer flags it. Call (877) 610-1318 and we’ll pull the flood zone data for your specific lot before you spend a dollar on plans.
Yes, a 1970s garage conversion is possible, but it depends on whether the home lost its pre-FIRM grandfathered status after Hurricane Ian. If the structure crossed the 50% substantial damage threshold, Lee County may classify the project as substantial improvement and require foundation elevation or flood mitigation work before the ADU can be permitted. We check that status and give you a written plan for what’s required before quoting. The range for garage conversion ADUs in North Fort Myers is $30,000 to $80,000, with the higher end including elevation and flood compliance work.
We typically see permit review for a home addition in 33903 taking four to eight weeks depending on whether elevation certificates, foundation redesign, or flood zone variance requests are involved. Post-Ian, Lee County’s building department has been heavily loaded, and parcels in reclassified flood zones face additional scrutiny. We pull permits on every eligible job, and we handle the resubmission process if the reviewer requests changes. Call (877) 610-1318 and we’ll give you a realistic timeline for your specific parcel.
It depends on your parcel’s soil, water table, and how high the BFE requires your finished floor to sit. In North Fort Myers’s low-lying zones along the Caloosahatchee, we often use helical piers or driven piles because they handle elevation gains cleanly without the settlement risk of poorly compacted fill. Engineered fill can work, but it requires geotechnical review and compaction testing. We evaluate both on every lot and show you the cost difference in writing before you choose. A typical foundation-only cost for an elevated ADU in a VE zone runs $30,000 to $60,000.
The 50% substantial damage rule means that if your manufactured home in North Fort Myers sustained damage from Hurricane Ian exceeding 50% of its pre-storm market value, it lost its pre-FIRM grandfathered status. Any new ADU attached to or built beside that structure now faces current flood code, which usually means the ADU must be elevated and the existing home may need to be brought into compliance too. We dealt with this exact scenario repeatedly after Ian in 33903 and 33917. We added a detached ADU off a 55+ community in 33903 where the original manufactured home was condemned after Ian. Our crew drove helical piers to meet the new BFE, framed a single-level 650-sq-ft unit with zero-threshold entries, and used slip-rated porcelain tile on a slab that now sits 42 inches above grade. Rough-in for a Moen grab-bar blocking package went in before insulation and drywall, and the final inspection sign-off came three weeks after our punch list cleared. Call (877) 610-1318 and we’ll walk your lot with you to explain exactly what the 50% rule means for your project.
If you’re planning a home addition or ADU in North Fort Myers, don’t guess at flood zones, elevation requirements, or the 50% rule. Call Barrett & Sons at (877) 610-1318 for a free estimate. We’ll pull your parcel’s flood data, walk the lot, and put a written line-item quote in your hands. Every permit pulled, every inspection signed, every change order in writing before work starts - and the 90-Day Done Right Promise backing the whole job.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving North Fort Myers and all of Lee County since 1998.