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    Turnkey Marina in Plantation Key Title is generated by Realmo AI

    90400 Overseas Highway, Plantation Key, FL 33070

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    For Sale
    $30,000,000

    COMMERCIAL - Plantation Key, FL

    Property size:
    17,000 SF
    Lot size:
    2.98 Acres
    Price / SF:
    $1,764/SF
    Added:
    May 6, 2026
    Days on Market:
    26
    Last Refresh:
    May 31 at 3:06 am

    Property Features for 90400 Overseas Highway

    General Information

    Property type
    Commercial Sale
    Property subtype
    Other
    Zoning
    SC - Sub Urban Commercial
    Bathrooms
    2
    Rooms
    Bathroom 1, Bathroom 4, Bathroom 2, Bathroom 3
    Appliances
    Refrigerator
    Standard status
    Active
    APN
    00432550000000
    Size
    17,000 SF
    Lot size
    2.98 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Description
    Plantation Key Colony First Addition Pb4-4 Plantation Key Lots 1 Thru 5 Bk 18 And Lots 31 Thru 38 Blk 19 Or250-574 Or361
    Tax Annual Amount
    63708

    Utilities

    Water front
    1

    Building Details

    Year built
    1968
    Building materials
    Steel Reinforced

    We can help!

    Listing Contact
    Kimberly Gray, P.A.

    Listing agent Kimberly Gray, P.A. License #3151823

    Listing office LoKation Real Estate - Pompano Beach 1500 E Atlantic Blvd, Suite B, Pompano Beach, FL

    Listing date May 6, 2026

    MLS# 619784

    Copyright © 2026 Florida Keys Board of REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Fully operational, income‑producing marina with 37 wet slips and four 60,000 lb boat lifts.
    • Premier waterfront property in Islamorada with 600ft on US1 and direct deep‑water access.
    • Turnkey operation with established service and parts department in five working buildings.
    • Equipped with fuel station, travel lift, marina bull, forklift, and on‑site boat ramp.
    • Diverse revenue streams from boat sales, repair, rigging, and maintenance.
    • Located in Islamorada, the ''Sportfishing Capital of the World,'' with limited marina inventory.

    Overview

    Available for the first time since 1996, this income-producing marina is located in the Upper Keys. Situated on almost 3 acres in Islamorada, the waterfront property features 600 feet of frontage on US1. It offers direct deep-water access and protected dockage. The property is suitable for full-service marine operations, a storage facility, or new development. The marina includes 37 wet slips and four 60,000 lb platform boat lifts. It is equipped with a fuel station with above ground tanks, a travel lift, a marina bull, a forklift, and an on-site boat ramp. The existing infrastructure supports boat sales, repair, rigging, and maintenance operations. The property includes a fully operational service and parts department with five working buildings dedicated to sales, service, parts, electronics, and a large storage barn. The property is approximately 17,000 square feet and is zoned SC - Sub Urban Commercial.
    Property Profile Location Intelligence

    Current Use by Public Records

    Plantation Boat Mart ... (Bike/Boat/Book/etc) Store Blackwater Boats (Bike/Boat/Book/etc) Store Invincible Boats (Bike/Boat/Book/etc) Store Live Like Dan (Bike/Boat/Book/etc) Store

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Auto Repair Shop

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Plantation Key
    County
    Monroe
    State
    Florida
    Longitude
    -80.537158
    Latitude
    25.001173

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    FAQs

    What type of property is this?
    Marina - Fully operational marina with diverse revenue streams and long-term potential.
    Where is this marina located?
    The property is located at 90400 Overseas Highway Plantation Key, FL.
    What is the asking price?
    The asking price for this property is $30,000,000.
    What are key features of this property?
    This property features: Fully operational, income‑producing marina with **37 wet slips and four 60,000 lb boat lifts**.; **Premier waterfront property in Islamorada with 600ft on US1 and direct deep‑water access.**; Turnkey operation with established service and parts department in five working buildings.
    (305) 393-7726
    We can help!
    Listing Contact
    Kimberly Gray, P.A.
    Real Estate License ID: 3151823
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    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

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