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 Gateway
Home additions and ADU construction in Gateway typically run $45,000 to $130,000 for room additions, and $90,000 to $220,000 for a new detached ADU, with most projects taking 4 to 9 months from first drawings to final inspection. The timeline stretches because Gateway is a master-planned community where every project clears two gates before dirt moves: the HOA Architectural Review Committee and Lee County permitting. Call (877) 610-1318 and we’ll walk you through exactly what your street, your lot, and your HOA will require before you spend a dime.
Why Barrett & Sons Construction Is Gateway’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998, and his sons run the crews that show up on Gateway job sites. That matters here because Gateway is not a place where a stranger in a rented truck can guess their way through an addition. The community’s deed restrictions specify approved exterior colors, roofing profiles, and driveway finishes. A contractor who submits the wrong spec learns the hard way. We’ve been through the ARC process enough times to know which submittals sail through and which ones bounce back for a two-week re-review.
Reviews from Gateway customers mention the same things: written change orders before any scope shift, permits pulled on every eligible job, and a live person answering the phone at (877) 610-1318 whenever they call. We don’t route you to a call center. Tom publishes his name, address, and license number. You can look him up before you sign anything. The 90-Day Done Right Promise is written on every contract, not hidden in fine print: if it’s not done right, one call brings Tom back.
Our crew members are background-checked and uniformed on every visit. They carry the Barrett & Sons name. In a community like Gateway, where you’ll see the same neighbors at the pool and the Publix on Gateway Boulevard, that accountability matters. We live with our reputation here. If something’s wrong, we hear about it at the hardware store. That’s the point.
Our Home Additions & ADU Services in Gateway
Every Home Additions & ADU project in Gateway starts with the paperwork reality: HOA ARC approval first, then Lee County permit. We file both, and we schedule the work so nothing sits half-finished while a committee deliberates. Here’s the depth of what we handle in Gateway:
ADU Design & Permitting
This is the front end that decides whether your project finishes in four months or nine. We draw to the HOA’s approved palette and material list from day one, not as an afterthought. The ARC submittal packet for Gateway needs elevation drawings, color samples, roofing material spec, and site plan. Lee County then reviews the structural and flood-elevation side. We coordinate both tracks so your permit application is ready the day the ARC letter lands.
New Detached ADU
A detached ADU in Gateway runs $90,000 to $220,000 depending on size, finishes, and site work. Gateway’s lots sit on flat, low-lying terrain with high seasonal water tables, so the slab and foundation design matters more than the framing. We run soil compaction testing before any pour, and we schedule slab work around the May-through-October wet season so saturated fill doesn’t delay the project. One ADU we built off Fairway Isles Drive needed a revised roofing profile after the first ARC submittal bounced. The roof material change order was documented in writing before we ever set a truss.
Garage Conversion ADU
Converting an attached garage in Gateway runs $30,000 to $80,000. Most Gateway homes are concrete block construction built between 1995 and 2012, which means the shell is usually solid, but the electrical service and insulation often predate current code. Converting a garage into living space triggers the energy code, so we typically upgrade the panel and add impact-rated windows. HOA approval still applies: the ARC cares about what the front elevation looks like even when the work is inside the existing footprint.
Junior ADU & Interior Conversion
A junior ADU carved out of existing square footage is the most budget-friendly path in Gateway, and it often avoids the full site-work and foundation questions that a detached build raises. But the HOA approval still applies if you’re changing any exterior element: a new door, a window, an AC condenser location. We file the ARC packet and the county permit together, and we pull both approval letters before any wall comes down.
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 Gateway Homes
- Foundation work started before the HOA approval letter landed. The ARC can force removal of non-conforming work. We’ve seen homeowners spend double because a crew poured footers on a verbal okay, then got a stop-work notice from the county after the HOA flagged it.
- Assuming Lee County plan review moves at pre-Ian speed. The September 2022 hurricane created a reconstruction backlog that still adds 6 to 10 weeks to plan review in many cases. A contractor who schedules framing before the permit is issued risks a stop-work order.
- Standard fill dirt without compaction testing on high-water-table lots. Gateway holds standing water during wet season, and an unengineered pad turns into a punch-list nightmare after the first good rain. We test before we pour.
- Impact glazing and roof-to-wall connectors skipped on older additions. Gateway’s 1990s-era homes predate the tightened post-2007 and post-Ian code updates. Any permitted renovation triggers retrofits, and a contractor who doesn’t flag that upfront is handing you a change order disguised as a surprise.
Pricing for Home Additions & ADU in Gateway, FL
Here are honest, market-calibrated ranges for Gateway, not national averages. A room addition in Gateway runs $45,000 to $130,000. A new detached ADU runs $90,000 to $220,000. A garage conversion runs $30,000 to $80,000. What moves the number: structural upgrades on concrete block homes, impact glazing retrofits, HOA-mandated material specs, and the soil prep that Gateway’s high water table demands. The HOA approval process can also affect cost if the committee requires a specific roofing tile or paver finish that costs more than the stock spec.
| Project Type | Gateway Price Range |
|---|---|
| Home Addition | $45,000-$130,000 |
| ADU Construction | $90,000-$220,000 |
| Garage Conversion | $30,000-$80,000 |
Every estimate is free, and every price change arrives as a written change order before any work happens. An allowance that isn’t on paper is a surprise waiting for a date. Call (877) 610-1318 and we’ll give you a line-item quote you can actually hold us to.
The Gateway HOA Approval Sequence: What Actually Happens
Here’s the part most contractors gloss over, and the reason you’re reading this page: Gateway’s dual bottleneck is real and it’s specific. Every home addition or ADU in Gateway must clear the HOA’s Architectural Review Committee before Lee County will even accept the permit application. The committee’s approved color palette, roof material list, and finish schedule are binding. A spec that passes in nearby Lehigh Acres gets rejected here. This is not a suggestion. It’s in the deed restrictions.
The sequence works like this. First, we prepare the ARC submittal packet: scaled elevation drawings, the proposed material schedule, color samples matched to the community’s approved palette, and a site plan showing setbacks and drainage. The committee meets on its own calendar, and turnaround runs one to three weeks depending on workload. If the packet is complete and the materials match the approved list, you get the ARC letter. If not, it bounces, and we revise and resubmit. On a detached ADU off Fairway Isles Drive, our first submittal got bounced for a roofing profile that wasn’t on the approved list. We swapped to the committee’s specified tile profile, pulled the revised ARC letter, then scheduled the slab pour around a week of morning thunderstorms so the fill wouldn’t saturate. The change order for the roof material was documented in writing before we ever set a truss.
Once the ARC letter is in hand, we file the Lee County permit package. Post-Ian, plan review is still running 6 to 10 weeks behind in many cases. So the calendar math for a Gateway ADU looks like this: 2 to 4 weeks for ARC, 6 to 10 weeks for county plan review, then construction. That’s the realistic draw schedule. We build it into your timeline from day one so you’re not sitting on a half-finished slab waiting for a committee that meets every other Tuesday. We schedule foundation and framing work around the approval milestones, not in spite of them.
The HOA approval letter is the first document we pull. The permit inspector works for you, not for me, and I like it that way. But the HOA is a different animal. Their review is about aesthetics and conformity, not code. A crew that skips the HOA step and starts foundation work anyway risks a forced removal order from the committee, which doubles the cost and the calendar. We’ve seen it happen to homeowners who hired a crew from outside the area. Don’t let that be you.
Trusted Brands We Service in Gateway
When your HOA spec comes back with a specific material requirement, we install what the committee approves and what we’d put on our own homes. For windows and impact glazing on Gateway additions and ADUs, we regularly specify PGT, Simonton, and CGI. These are brands you can look up, not mystery products off a van. For roofing and exterior finishes, we match the community’s approved profiles with GAF and CertainTeed materials that hold up in Florida sun and hurricane season. We order material early so the HOA-mandated spec doesn’t add weeks to your schedule, and we store it properly during the wet season so your framing lumber isn’t warped before it’s nailed.
Second Story Additions in Gateway: What Concrete Block Means for You
Gateway’s housing stock is overwhelmingly concrete block construction built during the 1995-2012 boom. That’s good news for a second story addition: the lower walls are usually load-bearing and sound. But it also means your permit package needs a structural engineer to verify the existing footers can carry the added load. Many Gateway homes built in the mid-1990s have footers sized for one story. A second story addition on those lots usually requires engineered reinforcement, and that’s a line item we show you before you sign. We’ve done enough second story work in Gateway to know which blocks of homes carry the load and which need the engineer’s stamp and a thickened footing.
We Also Serve Cities Near Gateway
Our crews cover Gateway and the surrounding communities including Lehigh Acres, Fort Myers Shores, Fort Myers, and Villas. If you’re in one of those areas, the same Tom Barrett and the same written-change-order policy apply. Every job gets the 90-Day Done Right Promise, whether it’s a detached ADU in Gateway or a second story addition ten minutes down the road.
Serving Gateway, FL - Our Local Coverage Area
We’re based in the Gateway 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 Gateway
Yes, in Gateway you need the HOA Architectural Review Committee’s written approval letter before Lee County will accept your permit application for an addition or ADU. The ARC letter is the first document in the sequence, and we file it for you. Call (877) 610-1318 for the exact packet requirements on your street.
Plan on 2 to 4 weeks for HOA ARC review and 6 to 10 weeks for Lee County plan review, meaning the paperwork phase runs 8 to 14 weeks before construction starts. We build that timeline into your draw schedule so you’re not surprised. The estimate is free, and the schedule we give you will be honest about the dual bottleneck.
If the HOA rejects your material, we revise the spec to match the committee’s approved list and resubmit. That’s typically a 1 to 2 week delay, and any material cost change arrives as a written change order before we buy anything. Call (877) 610-1318 and we’ll review your material plan against the community’s approved schedule before you ever file.
Yes, garage conversions on high-water-table lots are doable, but the slab may need moisture mitigation and the electrical service usually requires an upgrade to meet current energy code. Garage conversion ADUs in Gateway run $30,000 to $80,000. We’ll test the soil and show you the moisture remediation line item before you commit.
Most Gateway concrete block homes built between 1995 and 2012 can support a second story, but a structural engineer still has to verify the footers and tie-downs. Mid-1990s footers often need reinforcement, and we’ll show you that cost in writing before the permit goes in. Call (877) 610-1318 for a free evaluation of your specific floor plan.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Gateway with written change orders, pulled permits, and the 90-Day Done Right Promise on every home addition and ADU.