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    Key Largo Mixed-Use Property Title is generated by Realmo AI

    100636 Overseas Highway, Key Largo, FL 33037

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    For Sale
    $1,790,000

    COMMERCIAL - Key Largo, FL

    Property size:
    4,910 SF
    Lot size:
    0.18 Acres
    Price / SF:
    $364/SF
    Added:
    Dec 18, 2025
    Days on Market:
    155
    Last Refresh:
    May 22 at 12:06 pm

    Property Features for 100636 Overseas Highway

    General Information

    Property type
    Commercial Sale
    Property subtype
    Other
    Zoning
    SC - Sub Urban Commercial
    Bedrooms
    3
    Bathrooms
    3
    Rooms
    Bathroom 1, Bedroom 1, Bathroom 2, Bedroom 2, Bedroom 3, Bathroom 3
    Appliances
    Refrigerator, Range, Washer, Dryer, Dishwasher
    Standard status
    Active
    APN
    00524280-000000
    Size
    4,910 SF
    Lot size
    0.18 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Description
    BK 6 LT 9 AMD PLAT OF KEY LARGO PARK KEY LARGO & PT HWY OR552-586 OR552-584 OR552-580 OR641-316 OR808-1614/15 OR914-1056
    Tax Annual Amount
    7419

    Utilities

    Cooling system
    Central Air, Window Unit(s), Wall/Window Unit(s)

    Building Details

    Year built
    1974
    Floors in Building
    2
    Building materials
    CBS
    Roof type
    Concrete

    We can help!

    Listing Contact
    Maris Delgado

    Listing agent Maris Delgado License #3633235

    Listing office LoKation Real Estate - Key Largo 102901 Overseas Highway, Key Largo, FL

    Listing date Dec 18, 2025

    MLS# 617749

    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

    • High‑visibility location directly on US‑1 in Key Largo.
    • Mixed‑use property with commercial storefront and renovated 3BD/3BA residential apartment.
    • Solid concrete construction with impact windows and shutters.
    • Flexible zoning with endless potential.
    • Includes 10 parking spaces (5 on‑site, 5 rented).
    • Rooftop area, patio, and private yard space.

    Overview

    This Key Largo mixed-use property is located in a high-visibility location directly on US-1. The free-standing concrete building features a commercial storefront on the ground floor with signage, exposure, and customer access. The commercial area includes office and storage space. There are 5 on-site parking spaces, plus 5 additional rented spaces. The solid concrete construction is approximately 15 ft above sea level and includes impact windows and shutters. Upstairs is a renovated 3-bedroom, 3-bathroom residential apartment with a rooftop area, patio, and private yard space. The property is suitable for retail, specialty services, studio, or office use. The property has flexible zoning and potential in the heart of Key Largo. The lot size is 0.18 acres. The property size is 4910 square feet. An existing long-term business currently operates on the first floor; details about the optional business purchase are available separately.

    Financial Insights

    Value Estimation Calculated for Office B

    Conservative
    $1.03M
    NOI $92,578 @ 9.00% cap · cautious / downside scenario
    Moderate
    $1.32M
    NOI $92,578 @ 7.00% cap · market / base-case scenario
    Aggressive
    $1.85M
    NOI $92,578 @ 5.00% cap · optimistic / upside scenario

    NOI & Cap Rate Calculator

    NOI Build-Up
    Vacancy
    income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
    EGI (Effective Gross Income)
    gross rent minus vacancy losses — the realistic income before paying operating costs.
    OpEx (Operating Expenses)
    recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
    NOI (Net Operating Income)
    income a property generates after operating costs but before financing and taxes.
         Calculated for Office B

    Component $ $/SF
    Gross rent $147.3k $30.00
    − Vacancy −$23.9k −$4.86
    EGI $123.4k $25.14
    − OpEx −$30.9k −$6.29
    NOI $92.6k $18.86
    4,910 SF · lease $30.00/SF/yr · vacancy 16.20% · expense 25.00%

    Alternative Use Scenarios

    Best Use
    Office B
    $1.32M
    $1.16M – $1.54M (±1% cap)
    NOI $92,578 @ 7.0% cap · market cap 5.17%
    Second Best
    Apartment 5plus
    $1.09M
    $952.4K – $1.27M (±1% cap)
    NOI $76,192 @ 7.0% cap · market cap 4.26%
    Theoretical Best
    Office A
    $1.97M
    $1.73M – $2.30M (±1% cap)
    NOI $138,250 @ 7.0% cap · market cap 7.72%
    Zoning and permitted uses should be independently verified with local authorities.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Keys Kritters (Bike/Boat/Book/etc) Store

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Key Largo
    County
    Monroe
    State
    Florida
    Longitude
    -80.431189
    Latitude
    25.104162

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    FAQs

    What type of property is this?
    Mixed-use property - High-visibility mixed-use property with commercial storefront and residential apartment.
    Where is this mixed-use property located?
    The property is located at 100636 Overseas Highway Key Largo, FL.
    What is the asking price?
    The asking price for this property is $1,790,000.
    What are key features of this property?
    This property features: High‑visibility location directly on US‑1 in Key Largo.; Mixed‑use property with commercial storefront and renovated 3BD/3BA residential apartment.; Solid concrete construction with impact windows and shutters.
    (786) 309-6389
    We can help!
    Listing Contact
    Maris Delgado
    Real Estate License ID: 3633235
    Learn More
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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.

    More about this property
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