A home addition, or room addition, in Florida typically runs about $80,000 to $300,000, or roughly $200 to $500 per square foot depending on the type of space and finishes. J.M. Fortunato Construction is a family owned Southwest Florida remodeling project coordinator that plans and builds additions end to end with our team and trusted, licensed trade partners, matched to the home you already own.
Pick your area for local home additions costs and a free estimate.
Aqualane Shores was platted in the late 1940s and early 1950s as one of the first canal communities in Naples, and its deep water canals with quick Gulf access still draw boaters today. Many of the original midcentury homes here have been renovated, expanded, or rebuilt, and larger remodels of older homes in coastal flood zones can trigger substantial improvement review, which we plan for from day one. Call (239) 355-5869 or book a free estimate for Aqualane Shores pricing.
Bay Colony is the gated enclave at the north end of Pelican Bay, with beachside high rises and the estate homes of the Strand, guarded around the clock. Renovation work here moves on association schedules and building logistics, and we coordinate both so the project stays quiet and on plan. Call (239) 355-5869 or book a free estimate for Bay Colony pricing.
Grey Oaks is a private club community in central Naples with three championship golf courses, minutes from Fifth Avenue South. Homes range from coach homes to large estates, and remodels run through club and association design standards that we manage as part of the project. Call (239) 355-5869 or book a free estimate for Grey Oaks pricing.
Mediterra is a gated golf community in North Naples built around two Tom Fazio courses and a private Gulf beach club. Much of its housing stock is now old enough that kitchens, baths, and outdoor spaces are being updated to current taste, all within community design guidelines. Call (239) 355-5869 or book a free estimate for Mediterra pricing.
Old Naples is the historic heart of the city, a walkable grid between Fifth Avenue South, Third Street South, and the beach, where original cottages sit beside brand new estates. Remodels here often balance the character of an older home with modern systems, storm protection, and the finish level the neighborhood now expects. Call (239) 355-5869 or book a free estimate for Old Naples pricing.
Park Shore was developed by the Lutgert family beginning in the late 1960s, the first Naples community to pair beachfront high rise living with single family homes on the canals of Venetian Bay. That mix means two kinds of projects here, tower condos with association approvals and midcentury waterfront homes due for a full update. Call (239) 355-5869 or book a free estimate for Park Shore pricing.
Pelican Bay is a master planned beachfront community on land assembled in the 1970s, with private beach clubs reached by boardwalk through the mangroves. Condo renovations here run through association review, and we handle that paperwork and scheduling as part of the job. Census figures put the median Pelican Bay home at about 33 years old, built around 1993. Call (239) 355-5869 or book a free estimate for Pelican Bay pricing.
Port Royal was carved from mangrove shoreline in the 1950s, when developer John Glen Sample dredged the canals and peninsulas that define it today. It is now among the most exclusive waterfront addresses in the country, and much of the remodeling here involves bringing earlier estates up to the standard of the newest construction on the street. Call (239) 355-5869 or book a free estimate for Port Royal pricing.
The Moorings is a bayfront neighborhood along Moorings Bay with a private beach park for residents, a mix of waterfront single family homes and Gulf view condos. Many of the original homes are prime candidates for a full renovation, and coastal flood zone rules can shape how far an older home remodel can go, which we sort out up front. Call (239) 355-5869 or book a free estimate for The Moorings pricing.
Vanderbilt Beach pairs Gulf front condo towers with canal homes on the lagoons near Delnor Wiggins Pass. Projects here split between association governed condo renovations and waterfront homes being opened up and updated, and we run both kinds through one coordinated process. Call (239) 355-5869 or book a free estimate for Vanderbilt Beach pricing.
These are typical ranges for a home addition in Florida. The type of space, structural work, and finishes drive the number. Your exact price comes from a consultation and a detailed scope.
| Addition type | Typical range |
|---|---|
| Room addition (bedroom, office, den) | $80,000 to $180,000 |
| Primary suite or great room addition | $150,000 to $300,000 |
| Second story or large addition | $250,000 and up |
| Lanai, outdoor living, or pool enclosure | $40,000 to $150,000 |
Figures are typical ranges and vary by project. Your free estimate is exact.
J.M. Fortunato Construction measures your project and gives you a clear written estimate at no cost.
We are a local remodeling project coordinator and we stand behind every job. You are not handed off to a subcontractor. Every job follows the same disciplined process:
A well built addition gives you more room to live without leaving the home and neighborhood you love, which is a strong move in the Southwest Florida market. Additions have to meet Florida wind and code requirements and blend into the existing home, and the schedule accounts for permitting and hurricane season. J.M. Fortunato Construction coordinates the addition from design through final inspection, and many Florida owners have us build while they are away for the season.
Much of what an addition costs sits in work a homeowner never sees once the walls are closed: the slab or foundation, the air conditioning, the electrical service, and the plumbing that ties a new bathroom back into the house.
Foundation work depends on whether you build out or build up. A ground level room needs a new slab and footings tied into the existing house, and the lot's soil, drainage and elevation shape that scope. Building up is a different job, because the existing foundation and walls have to carry a new floor. That is the main reason the table on this page starts second story and large additions at $250,000, while a ground level bedroom, office or den runs $80,000 to $180,000. When you compare quotes, check whether engineering review of the existing structure is included or priced separately.
Much of the housing here was built before today's additions were planned. The median home in Naples city was built in 1982, on Marco Island in 1988, and in Bonita Springs in 1997, according to ACS 5 year estimates for 2023. In a house that age, the air conditioning and electrical panel were usually sized for the original floor plan. New conditioned space can call for a larger system or a second air handler, new duct runs, and in some homes a panel or service upgrade to carry new circuits. These items should appear as their own lines in a quote, not folded into one general figure.
Plumbing for a new bathroom depends mostly on distance and on the slab. Fixtures placed near existing supply and drain lines keep runs short. A bathroom at the far end of an addition built on a slab usually means cutting and trenching for new drain lines, and that cost belongs in the bid from the start.
J.M. Fortunato Construction coordinates the project, and licensed trade partners perform the structural, mechanical, electrical and plumbing work, so each system is scoped by the trade that will build it. The questions below can help you compare bids line by line.
A home addition in Florida usually runs about $80,000 to $300,000, or roughly $200 to $500 per square foot, with a simple room addition at the lower end and a primary suite or second story higher. Structure and finishes drive the number, so a consultation and scope from J.M. Fortunato Construction give you an exact figure.
In the Southwest Florida market, additions typically run about $200 to $500 per square foot depending on the type of space, structural work, and finishes. A primary suite or second story sits at the higher end. J.M. Fortunato Construction gives you a firm number after a consultation and detailed scope.
Most home additions in Florida take about three to eight months depending on size, structural work, and permitting. J.M. Fortunato Construction builds a realistic schedule and coordinates every trade and inspection to hold it.
Yes. J.M. Fortunato Construction coordinates additions for seasonal and out of state owners regularly, with an owner portal showing milestones, photos, and the budget in real time, so you can be away and return to finished new space.
Both, and we are transparent about it. J.M. Fortunato Construction coordinates the addition with our own team and trusted, licensed and insured trade partners, so foundation, framing, and finishes are all in skilled hands under one accountable coordinator.
As your project coordinator, J.M. Fortunato Construction handles every part of your project. Our own team does the hands on work, and any trade that requires a license, such as plumbing, roofing, or electrical, is performed by licensed and insured partners we coordinate, so it is always done to code by licensed professionals. The work is backed by a workmanship warranty.
That is a priority. J.M. Fortunato Construction designs and builds the addition to blend into the existing architecture, roofline, and finishes so it looks original to the home, not tacked on.
Yes. New square footage in Southwest Florida must meet current wind and building code, including impact rated openings where required. J.M. Fortunato Construction designs and builds to code and handles the permitting and inspections.
Yes. J.M. Fortunato Construction coordinates lanais, outdoor kitchens, and pool enclosures that suit the Gulf Coast lifestyle, typically running about $40,000 to $150,000 depending on size and finishes.
Start with a free consultation. J.M. Fortunato Construction visits your Florida home, reviews what you want to add and how it ties in, and follows up with a clear scope and budget approach, with no obligation.
A home addition in Florida typically costs $200 to $500 per square foot for finished, air conditioned living space on J.M. Fortunato Construction's published figures, with second story work toward the top of that range. Structural scope moves the number most: a second story needs the existing foundation and framing checked and often reinforced, which is why second story and large additions start at $250,000. Location matters because the Florida Building Code requires impact rated windows and doors or shutters in wind borne debris regions, which cover most of coastal Southwest Florida, and FEMA's 50 percent substantial improvement rule can force homes in flood zones to elevate new space. Finishes matter too, since a suite with a full bathroom and custom cabinetry costs far more per foot than a plain bedroom, while unconditioned lanai space costs less. Most additions take 3 to 8 months from start to finish. Room additions run $80,000 to $180,000, primary suites $150,000 to $300,000, and lanai or pool enclosure work $40,000 to $150,000 on the same published price table.
A home addition in Naples needs permits and licensed trades, but the homeowner does not have to hire and manage each one alone. Chapter 489 of the Florida Statutes requires structural, plumbing, electrical and roofing work to be performed by state licensed contractors, and permits go through the City of Naples building department inside city limits or Collier County elsewhere. The published table on this page puts a bedroom, office or den addition at $80,000 to $180,000, a primary suite or great room at $150,000 to $300,000, a second story at $250,000 and up, and a lanai or pool enclosure at $40,000 to $150,000, with most additions taking 3 to 8 months. Structure is what moves a project between those tiers: building up means an engineer has to confirm the foundation can carry a new floor, and on a lot in a flood zone a large addition can trigger the federal 50 percent substantial improvement rule (44 CFR 59.1). As a remodeling project coordinator, J.M. Fortunato Construction plans the addition and coordinates licensed trade partners for the licensed work.
Local, licensed and insured, and accountable from the first visit to the final walkthrough. Tell us about your project and we will give you a clear written estimate at no cost.
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