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 Naples Manor
Adding square footage in Naples Manor means dealing with Collier County’s permitting process, not the City of Naples. That one distinction changes everything about how your project gets scoped, priced, and scheduled. A detached ADU in Naples Manor typically runs $90,000 to $220,000, while a room addition lands between $45,000 and $130,000 depending on foundation work, septic setbacks, and whether you’re building up or out. We’ve been pulling permits through the county’s Growth Management Department in East Naples long enough to know where the delays hide and how to keep your project moving. Call (877) 610-1318 and we’ll walk your lot with you before anyone quotes a number.
Why Barrett & Sons Construction Is Naples Manor’s Preferred Home Additions & ADU Company
Tom Barrett put his name on the truck in 1998, and his sons run the crews today. When you call about a Home Additions & ADU project in Naples Manor, you’re talking to people who know the difference between a Collier County permit and a City of Naples permit, and why that matters for your timeline. We show up when we say we will. The 90-Day Done Right Promise is written on every contract: if something isn’t right, one call brings Tom back. That’s not a marketing line. It’s been the way we work since before half the national franchises had a Florida office.
Our reputation in Naples Manor comes from doing things neighbors can verify. Tom publishes his name, address, and license number. Look it up before you sign anything. Every price change arrives as a written change order before work happens, because an allowance that isn’t on paper is a surprise waiting for a date. Our crew members are background-checked and uniformed, and they carry the Barrett & Sons name on their shirts. A live person answers the phone 24/7, not a voicemail box in another state.
Our Home Additions & ADU Services in Naples Manor
New Detached ADU
A detached ADU on a Naples Manor lot starts with the septic and well setbacks, not with a floor plan. Collier County requires specific distances from the drain field and the well head, and on the smaller lots off Bayshore Drive and along Rattlesnake Hammock Road, those setbacks sometimes force a narrower footprint than homeowners expect. We scope the site first, confirm what the county will approve, then design the unit to fit. Most detached ADUs in Naples Manor run $90,000 to $220,000, and the variance comes from site work, not finishes.
ADU Site Prep & Utilities
Before a single form gets set, we’re looking at grade, drainage, and underground utilities. Naples Manor sits low and flat, and much of the area falls within or near FEMA flood zones. That means an elevation certificate may determine your finished floor height, and the county will require it before the foundation inspection. July downpours flood open trenches fast, so we schedule site prep around the wet season when we can, and we protect open excavations with proper silt fencing and sump pumping when we can’t. Electrical service upgrades are common on the original 1960s through 1980s panels in this neighborhood, and we include that in the written scope before you sign.
Garage Conversion ADU
Converting an attached garage in Naples Manor is often the most cost-effective path to an ADU, typically $30,000 to $80,000. But the original CBS block garages here weren’t built as living space. The slab may be uninsulated, the exterior walls may lack a moisture barrier, and the existing electrical subpanel is rarely sized for a kitchen. We address all three in the scope: slab insulation or a raised floor system, proper flashing and stucco repair at the transitions, and a new subpanel with capacity for the appliances the county will require. Permits still run through Collier County, even though the structure is attached to your home.
Junior ADU & Interior Conversion
A junior ADU, sometimes called an interior conversion, turns existing space inside your home into a semi-independent unit with its own entrance, kitchenette, and bathroom. In Naples Manor’s small floor plans, this often means converting a master suite wing or a closed-in carport. The county treats these differently than detached units: setbacks may not apply, but flood zone elevation requirements still do if you’re adding plumbing below the base flood elevation. We scope the conversion, pull the county permit, and bring the electrical and plumbing up to current code before the drywall goes back up.
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 Naples Manor
When your ADU or addition needs a driveway approach, a paver patio, or a new walkway, we install materials from Techo-Bloc and Cambridge Pavers. These aren’t mystery brands off a van. They’re manufacturers with published specs, which matters when the county wants to see product data sheets at permit review. For concrete work, we use Quikrete products for footings, slabs, and repair work around the site. We keep common materials and a local supply chain that serves Naples Manor, so we’re not waiting on a truck from two counties away when your project needs to move.
Common Home Additions & ADU Problems We See in Naples Manor Homes
- Starting before the county permit clears: Naples Manor’s flood zone rules can require an elevation certificate that changes your foundation height. Build first and ask later, and the county can issue a stop-work order that costs more than the permit ever did.
- Assuming septic and well locations won’t matter: Collier County setbacks on the original septic systems in Naples Manor often force a smaller ADU footprint or trigger a septic system upgrade. We confirm the setbacks before we draw the plans.
- Underestimating the wet season: June through September thunderstorms flood open trenches and delay concrete pours. Old stucco wicks moisture into new framing if it isn’t flashed correctly, and we’ve repaired enough of those failures to scope the flashing right on the front end.
- Chasing a lower bid from an unregistered contractor: Out-of-area builders sometimes quote Naples Manor work without holding Collier County contractor registration. The price looks good until the permit application gets rejected and the builder disappears.
Pricing for Home Additions & ADU in Naples Manor, FL
Here’s what we tell Naples Manor homeowners before they sign anything. A home addition runs $45,000 to $130,000. A detached ADU runs $90,000 to $220,000. A garage conversion runs $30,000 to $80,000. These ranges reflect the site work, county permitting, and current material costs in Southwest Florida. Post-Hurricane Ian reconstruction demand has kept labor prices elevated across Collier County, and we don’t pretend otherwise. What changes your number is the specific site: flood zone elevation requirements, septic setbacks, panel upgrades, and whether you’re building on grade or going up. We give you a written line-item quote, and every change after that arrives as a written change order before any work happens. Free estimates are always free, and there’s no trip charge inside the county. Call (877) 610-1318.
| Project Type | Typical Range in Naples Manor |
|---|---|
| ADU Construction | $90,000 - $220,000 |
| Home Addition | $45,000 - $130,000 |
| Garage Conversion | $30,000 - $80,000 |
We Also Serve Cities Near Naples Manor
Our crews work throughout the surrounding communities, including East Naples, Naples, Golden Gate, and Naples Park. If you’re just outside Naples Manor in 34112 or a neighboring zip code, the same county permitting rules generally apply, and the same written change order policy protects your budget. Call (877) 610-1318 to confirm we cover your street.
Serving Naples Manor, FL - Our Local Coverage Area
We’re based in the Naples Manor 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 Naples Manor
Naples Manor is unincorporated Collier County, so every ADU permit goes through the county’s Growth Management Department in East Naples, not the City of Naples building department. The county requires separate contractor registration, and the review queue for residential additions and ADUs runs longer than the city’s queue, especially during the post-Ian reconstruction surge. Plan for the county timeline from day one. We file the application before we order materials, so the permit review runs parallel to the site prep. Call (877) 610-1318 and we’ll give you a realistic permit timeline for your specific project.
In many cases, yes. Collier County requires a minimum setback between a drain field and any new structure, including a detached ADU. On the original 1960s through 1980s lots in Naples Manor, the existing septic system often sits too close to where homeowners want the ADU to go, which means either shrinking the unit or upgrading the septic system. We confirm the setback before we draw the plans, because discovering it after the design phase is when budgets break. Call (877) 610-1318 and we’ll check your lot before you commit to a footprint.
Yes, and we’ve done it, but the original block walls and flat or low-pitch roofs on many Naples Manor homes need structural upgrades first. Current Collier County wind-load codes require tie-downs and connections that didn’t exist when these homes were built, and the existing slab and footings may need verification before you add vertical load. On a 1960s CBS block home off Bayshore Drive, we replaced the original flat roof’s tie-downs before framing a second-story addition, and that scope item was in the written quote before the first nail moved. Call (877) 610-1318 and we’ll walk you through what your specific home needs.
The usual answer in Naples Manor is that the lower price leaves something out: the county permit, the elevation certificate, the panel upgrade, or the actual cost of bringing the original slab and walls up to living-space code. Sometimes the contractor didn’t hold Collier County registration and never intended to pull the permit. We don’t compete on cheapest bid. We price the job so the permit gets approved, the work passes inspection, and the final product matches the written scope. If you have a written estimate from someone else, bring it in and we’ll give you a free second opinion. Call (877) 610-1318.
Every price change arrives as a written change order before the work happens. If lumber or concrete prices move, we show you the new number in writing and get your signature before we proceed. That’s been our rule since day one, and it’s why the allowance that isn’t on paper is a surprise waiting for a date. On one Naples Manor ADU, a concrete price jump hit mid-foundation, and the homeowner saw the change order the same day, not at final billing. Call (877) 610-1318 and we’ll scope your project the same way.
If you’re planning a home addition or ADU in Naples Manor, start with a free estimate. We’ll walk your lot, check the county setbacks and flood zone requirements, and give you a written line-item price before you sign anything. Call (877) 610-1318 today.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Naples Manor and surrounding Collier County since 1998.