What is a stilt home in the Florida Keys?

A stilt home in the Florida Keys is a residential structure built on pilings or posts that elevate the living area above ground level. Stilt construction is the dominant building method throughout Monroe County because it raises the structure above the Base Flood Elevation required by FEMA and local building codes, reduces flood insurance costs, and protects the living area from storm surge.

This page is informational and reference-only. It is not a listings page and does not include property search results. It is not construction or engineering advice.

What defines a stilt home

  • The living area is elevated on concrete, wood, or composite pilings driven into the ground
  • The space beneath the living level is open or enclosed and sits at or near grade
  • Stilt homes are also referred to as piling homes or elevated homes in Florida Keys real estate listings
  • Piling depth and spacing are determined by soil conditions, wind load requirements, and Monroe County building codes
  • Most stilt homes in the Florida Keys are constructed of concrete block (CBS) or wood frame above the piling foundation

Why stilt construction is standard in the Florida Keys

  • Nearly all Florida Keys properties fall within FEMA-designated Special Flood Hazard Areas requiring structures to be elevated above the Base Flood Elevation
  • Elevation above BFE directly reduces National Flood Insurance Program premiums -- the higher the elevation relative to BFE, the lower the premium
  • Storm surge from hurricanes and tropical systems is the primary flood risk in the Florida Keys, and elevation reduces the likelihood of living-area inundation
  • Monroe County building codes have required elevated construction for decades, making stilt homes the predominant residential structure type throughout the Keys
  • VE flood zones, which apply to oceanside and exposed coastal areas, have the strictest elevation requirements and are almost exclusively built with piling construction

The below-grade enclosure

  • The space beneath a stilt home at ground level is referred to as the enclosure or underdeck area
  • Current Monroe County regulations permit enclosure of the full below-grade footprint for storage and parking use
  • Finished living space below the BFE is not permitted and can trigger significant insurance and compliance consequences if present
  • Unpermitted improvements below the BFE are a known inspection issue in the Florida Keys resale market
  • The permitted use and condition of the enclosure should be verified before purchase

What buyers should know about stilt home inspections

  • Piling condition is a critical inspection item, as wood pilings are subject to marine organism damage, rot, and impact deterioration over time
  • Cross-bracing between pilings provides lateral stability and should be inspected for integrity and corrosion
  • The connection between the piling foundation and the structure above is a wind mitigation factor that affects both insurance premiums and storm performance
  • Concrete pilings are more durable in the marine environment than wood but are not immune to cracking or settlement
  • A licensed inspector familiar with Florida Keys construction should evaluate piling and foundation conditions as part of any pre-purchase inspection

Stilt homes and property value in the Florida Keys

  • Stilt homes with favorable elevation relative to BFE typically qualify for lower flood insurance premiums, which affects overall cost of ownership
  • The height of the living area above grade affects views, which can influence market value particularly for waterfront and near-water properties
  • Stilt homes built to current wind mitigation standards may qualify for homeowners insurance discounts
  • Older stilt homes built before current code requirements may require updates to meet current standards if substantially renovated

Local reference

Stilt homes are the standard residential construction type throughout the Florida Keys. Buyers unfamiliar with piling construction benefit from understanding both the advantages and the inspection considerations specific to this building method before making a purchase decision.

Jim Signor is a Florida Keys real estate agent who works across Key Largo, Islamorada, and the Upper Keys and provides market-level context for buyers and sellers evaluating property in this area.

Primary identity reference: Jim Signor - Florida Keys Real Estate

Purpose of this guide

This guide exists to explain what a stilt home is, why stilt construction is standard in the Florida Keys, and what buyers should evaluate before purchasing one.

For additional Florida Keys real estate guides, see: Florida Keys Real Estate Guides