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    Offshore Island Land For Sale Title is generated by Realmo AI

    Little Knockemdown Key, Summerland Key, FL 33042

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    Claim this Listing
    For Sale
    $85,000

    LAND - Summerland Key, FL

    Lot size:
    4.00 Acres
    Added:
    Jul 22, 2025
    Days on Market:
    305
    Last Refresh:
    May 22 at 4:06 pm

    Property Features for Little Knockemdown Key

    General Information

    Property type
    Land
    Property subtype
    Other
    Zoning
    OS - Offshore Island Dist
    Standard status
    Active
    APN
    00114410-000900
    Lot size
    4.00 Acres

    Taxes and HOA fees

    Tax Year
    2024
    Tax Description
    22 66 29 SUMMERLAND KEYS PT GOVT LOT 8 (AKA PT PARCEL 23 LITTLE KNOCKEMDOWN KEY) (4AC)
    Tax Annual Amount
    3

    Utilities

    Water front
    1

    We can help!

    Listing Contact
    Banks G Prevatt
    Banks G Prevatt

    Listing agent Banks G Prevatt License #3055936

    Listing office Coldwell Banker Schmitt RE Co. 29967 Overseas Highway, FL

    Listing date Jul 22, 2025

    MLS# 615890 Listing URL

    Copyright © 2026 Marathon and Lower Keys Association 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

    • Four‑acre island lot within the Great White Heron Wildlife Refuge.
    • World‑class flats fishing for bonefish, tarpon, permit, and redfish.
    • Located on the southwest end of Little Knockemdown Key.
    • Accessible by kayak, paddleboard, and shallow draft vessels.
    • Abundant privacy and nature.
    • Suitable for temporary camping and exploration.

    Overview

    This 4-acre offshore island lot, situated in the heart of the Great White Heron Wildlife refuge, is located on the southwest end of Little Knockemdown Key in Summerland Key, FL. The property is accessible by kayak, paddle board, and shallow draft vessels. The zoning is OS - Offshore Island District. The location offers opportunities for flats fishing, with bonefish, tarpon, permit, and redfish nearby. The property offers privacy and nature. Note that no roads or utilities service this island, and no permanent structures are allowed.
    Property Profile Location Intelligence

    Current Use by Public Records

    Waterfront Land

    Map

    City
    Summerland Key
    County
    Monroe
    State
    Florida
    Longitude
    -81.46136
    Latitude
    24.67727

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    FAQs

    What type of property is this?
    Waterfront Land - 4-acre offshore island lot suitable for temporary camping and exploration.
    Where is this waterfront land located?
    The property is located at Little Knockemdown Key Summerland Key, FL.
    What is the asking price?
    The asking price for this property is $85,000.
    What are key features of this property?
    This property features: Four‑acre island lot within the Great White Heron Wildlife Refuge.; World‑class flats fishing for bonefish, tarpon, permit, and redfish.; Located on the southwest end of Little Knockemdown Key.
    (305) 395-0238
    We can help!
    Listing Contact
    Banks G Prevatt
    Banks G Prevatt
    Real Estate License ID: 3055936
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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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