Quick Answer
New construction on Longboat Key is almost entirely teardown-rebuild activity. The island has been fully developed since the 1970s and 1980s. No vacant land is being subdivided. Teardown-rebuild projects for Gulf-front properties typically cost $1.5M to $5M+ for construction alone, with total project costs of $4M to $12M+ including land. Zone VE open-pile foundation requirements and FDEP Coastal Construction Control Line permits add significant complexity and time.
New Construction on Longboat Key FL
By Barrett Henry, Broker Associate, REMAX Collective • Updated September 23, 2026
Longboat Key was largely developed during the 1960s through 1980s. By the 1990s, the island was functionally built out. Today, new construction means either purchasing an existing lot with a teardown structure and building new, or purchasing a vacant platted lot (extremely rare). There is no master-planned new development, no new subdivision, and no production homebuilder actively building spec homes on Longboat Key. Buyers who want brand-new construction on the island are buying a project, not a product.
Longboat Key Resources
Why Is New Construction So Limited on Longboat Key?
The island is physically finite. At roughly 12 miles long and 1.5 miles wide at its widest point, there is simply no undeveloped land left to build on in any conventional sense. The developable envelope of the island was filled in during the post-war Florida land boom. Today, the only way to build new is to remove something old. Additionally, the permitting and construction requirements for new Gulf-front construction are among the most stringent in the state.
The Teardown Process
A teardown-rebuild project on Longboat Key follows this general sequence:
- Acquire the land (with teardown structure). Gulf-front teardown lots currently trade from $1.5M to $5M+ depending on lot width, depth, and frontage quality. Bay-front teardown lots range from $600K to $2M+. Interior teardown lots range from $300K to $800K.
- Pre-design and permitting. An architect familiar with Longboat Key's building codes, Town setback requirements, and FEMA floodplain requirements designs the structure. For Gulf-front, coordination with the Florida Department of Environmental Protection (FDEP) for a Coastal Construction Control Line (CCCL) permit is required. FDEP CCCL permits for Gulf-front construction take 3 to 9 months.
- Demolition and asbestos/lead abatement. Structures built before 1978 often contain lead paint or asbestos. An environmental assessment followed by certified abatement is required before demolition. Abatement costs range from $5,000 to $30,000+ depending on the structure's age and materials. Demolition of a typical 2,000 sq ft beach structure runs $15,000 to $35,000.
- Foundation work. Zone VE requires open-pile or column foundations. Engineers design the pile system based on soil borings and FEMA BFE requirements. Piling for a Gulf-front home can cost $80,000 to $250,000+ depending on depth, diameter, and count.
- Construction. Luxury custom home construction on Longboat Key runs $400 to $800+ per square foot for high-end finish levels, not including land. A 3,500 sq ft Gulf-front home at $600/sq ft is $2.1M in construction cost alone, plus land.
- Total project timeline. From contract on the teardown property to certificate of occupancy on the new home: typically 24 to 48 months for a Gulf-front build. Interior properties with fewer permitting complications can be done in 18 to 30 months.
| Project Type | Land Cost | Construction Cost | Soft Costs (Arch/Eng/Permits) | Total Project Est. | Timeline |
|---|---|---|---|---|---|
| Gulf-front SFH, 3,000 sqft | $2M to $5M | $1.5M to $3M | $200K to $600K | $4M to $9M+ | 30-48 months |
| Bay-front SFH, 3,000 sqft | $800K to $2M | $1.2M to $2.5M | $150K to $400K | $2.5M to $5M | 24-36 months |
| Canal-front SFH, 2,500 sqft | $500K to $1.2M | $1M to $2M | $120K to $300K | $1.8M to $3.5M | 18-30 months |
| Interior SFH, 2,500 sqft | $350K to $700K | $800K to $1.8M | $100K to $250K | $1.4M to $2.8M | 18-28 months |
What Are the Key Permits for New Construction on Longboat Key?
Town of Longboat Key Building Department
The Town's Building Department processes all building permits. New construction requires full architectural plans, structural engineering, MEP (mechanical, electrical, plumbing) engineering, and Florida Energy Code compliance documentation. The Town enforces the Florida Building Code, which in coastal areas includes additional wind speed and flood-resistant construction requirements. The Town of Longboat Key Building Department is at 501 Bay Isles Road. Plan processing times for complex custom homes can run 3 to 6 months.
FDEP Coastal Construction Control Line (CCCL) Permit
The CCCL is a setback line established by the Florida Department of Environmental Protection that protects coastal construction from storm and erosion damage. Gulf-front construction on Longboat Key falls within CCCL jurisdiction. Any new structure or substantial improvement of an existing structure seaward of the CCCL requires a FDEP permit in addition to the Town building permit. The FDEP CCCL permit review evaluates impacts to beach and dune systems, requires setback compliance, and may include conditions related to native vegetation and lighting (sea turtle protection). Processing times are 3 to 9 months.
FEMA Floodplain Compliance
The Town of Longboat Key participates in the NFIP, which requires that new construction and substantial improvements (cost exceeding 50% of the structure's pre-improvement market value) comply with current floodplain management standards. In Zone AE, this means the lowest floor must be at or above the Base Flood Elevation. In Zone VE, the lowest horizontal structural member must be at or above BFE, the structure must be on an open foundation, and construction below BFE must be of break-away materials only. Flooding FEMA requirements can significantly impact the design and cost of new construction on Longboat Key.
Should You Build New or Buy Existing on Longboat Key?
| Consideration | Build New | Buy Existing |
|---|---|---|
| Customization | Full control over design and finishes | Limited to existing layout and condition |
| Modern construction standards | Current FBC, impact glass, insulation | Depends on age and renovation history |
| Insurance advantages | New construction gets best wind credits | Older buildings cost more to insure |
| Timeline | 24 to 48 months from land purchase | Can close in 30 to 60 days |
| Cost certainty | Low — construction costs routinely exceed budget | Higher — known price at contract |
| Risk | Construction delays, cost overruns, permitting holds | Hidden defects, deferred maintenance, SB 4-D exposure |
| Total cost | Often equal to or more than buying equivalent resale | Resale premiums for fully renovated properties |
| Financing | Construction loans are complex and expensive | Standard mortgage or jumbo financing available |
New Construction Alternatives Near Longboat Key
Buyers who want new construction in the Sarasota-Manatee area without the complexity of a teardown-rebuild on Longboat Key have some alternatives:
| Location | New Construction Options | Price Range | Drive to LBK |
|---|---|---|---|
| Lakewood Ranch, FL | Active master-planned communities (Del Webb, DiVosta, etc.) | $400K to $1.5M | 35-45 min |
| Sarasota County (east) | New communities in Palmer Ranch, Nokomis area | $350K to $900K | 30-45 min |
| Bradenton / West Bradenton | New builds in suburban communities | $350K to $700K | 20-35 min |
| North Port / Venice | Active new construction in Wellen Park and other communities | $300K to $650K | 45-65 min |
Ready to Buy or Sell on Longboat Key?
Barrett Henry — Broker Associate, REMAX Collective. 23+ years of real estate experience.
Contact BarrettCall (813) 733-7907Frequently Asked Questions About New Construction on Longboat Key
Are there any new condos being built on Longboat Key?
Occasionally, individual condo towers undergo complete demolition and reconstruction. The most notable recent example in the Sarasota-LBK area was the St. Regis Longboat Key Resort and Residences at the island's south end, which involved complex permitting and was a large-scale luxury development. Truly new speculative condo development on the island is rare and tied to extraordinary circumstances. The bulk of the condo inventory on Longboat Key was built from the 1960s through the 1990s.
What is the best way to find a teardown property on Longboat Key?
Teardown candidates are typically listed in the MLS with notes about the land value or lot clearing potential. Some are unlisted and only available through direct outreach to owners of older structures, especially on the Gulf front where land value significantly exceeds the structure's value. I have helped buyers identify off-market teardown opportunities on Longboat Key through direct owner contact and relationship-based sourcing. If building new on the key is your goal, the first step is a conversation about what lots are available or potentially available.
How much does it cost to tear down and rebuild a Gulf-front home on Longboat Key?
All-in costs for a Gulf-front teardown and rebuild typically range from $4M to $12M+ depending on lot value, structure size, finish level, and site conditions. The land itself (with teardown) is $2M to $5M for a standard Gulf-front lot. Demolition, abatement, permitting, engineering, and construction can add $2M to $7M+ for a 3,000 to 5,000 sq ft custom home. These are not fixed numbers and construction cost overruns are common. Buyers should carry a 15% to 25% contingency on all new construction budget estimates.
Do I need FDEP approval to build on Longboat Key?
For Gulf-front construction within the CCCL (Coastal Construction Control Line), yes. FDEP's CCCL permit is required in addition to the Town building permit. The CCCL runs along the Gulf-front side of the island. Bay-front and interior construction that does not fall within CCCL jurisdiction typically does not require a FDEP CCCL permit, though other FDEP permits may apply for dock and seawall work. Your architect and the Town Building Department can confirm which agency permits are required for your specific site.
Are there builders who specialize in Longboat Key custom homes?
Yes. Several Sarasota and Bradenton area custom home builders have experience with coastal construction on Longboat Key and are familiar with the Town's building department, the FDEP process, and Zone VE foundation requirements. I can refer my buyer clients to builders with demonstrated experience on the island. It is worth paying a premium for a builder who knows the local permitting process rather than hiring a general contractor unfamiliar with coastal construction requirements who learns on your project.
About Barrett Henry: Barrett Henry is a licensed Broker Associate with REMAX Collective serving the greater Tampa Bay, Sarasota, and Manatee County areas. With 23+ years of real estate experience, Barrett specializes in luxury coastal properties, waterfront homes, and barrier island real estate including Longboat Key. Learn more about Barrett or schedule a consultation.
