Quick answer: A home addition in Fort Myers needs engineered plans for Florida wind loads, a permit from the City of Fort Myers or Lee County, and a check of setbacks, lot coverage and flood zone before design. A midrange primary suite addition averages about $165,000 nationally, and costs here depend on size, foundation, roof tie-in and finishes. Miniopolis designs, permits and builds additions as a state-certified general contractor.
Last updated: November 2026 · Miniopolis LLC, Florida State Certified General Contractor (CGC1531810), Fort Myers
Additions We Build
- Bedroom and primary suite additions with a bathroom and closet.
- Family room and great room expansions.
- In-law suites and ADUs or guest houses where zoning allows.
- Garages and carports.
- Second-story additions where the structure and code allow.
- Lanais, screen rooms and Florida rooms. See screen room additions.
What to Check Before You Design
- Setbacks and lot coverage: how far you can build toward each property line.
- Flood zone: new additions in a flood zone must meet elevation rules, and a large project on an older home can trigger the 50% rule for the whole house.
- Structure and roof tie-in: engineering for wind uplift and matching the existing roof.
- Utilities: septic capacity, electrical panel size and HVAC sizing.
- HOA approval if your community has one.
Typical Costs
National 2025 averages from the Cost vs. Value report: a midrange primary suite addition about $165,000, an upscale one about $340,000, and a midrange bathroom addition about $59,000. Your price depends on size, foundation, roof work and finishes. Concrete block, ICF and SIP construction are all options. See ICF vs. block.
Our Process
- Free site visit and feasibility check.
- Design and engineering.
- Permitting with the right jurisdiction.
- Construction, inspections and final.
See all general contracting services in Fort Myers.
Request a Free Estimate
Tell us about your project and we will get back to you within one business day, or call (239) 329-8804.
Home Additions FAQ
Do I need a permit for a home addition in Fort Myers?
Yes. Additions need engineered plans and a building permit from the City of Fort Myers or Lee County, depending on your address.
How much does a home addition cost in Fort Myers?
It depends on size, foundation, roof tie-in and finishes. As a national benchmark, a midrange primary suite addition averaged about $165,000 in 2025.
Does an addition have to be elevated in a flood zone?
Additions in a flood zone generally must meet flood elevation rules, and a large project on an older home can trigger the 50% rule for the whole structure. We check before design.
How long does a home addition take?
Most take a few months of construction after permits, depending on size and complexity.