Advertise
    Marco Island, FL
    Duplex

    Marco Island, FL Duplexes for Sale

    Notify Me
    List
    Map
    Naples, FL Goodland, FL
    Waterfront Duplex with Private Dock
    Updated: Dec 18, 2025
    Waterfront Duplex with Private Dock

    821 Palm St, Marco Island, FL 34145

    $1,800,000
    3,754 sqft 0.35 AC lot
    Two‑unit duplex with 3,754 square feet on 0.35 acres
    Unit A: 2 bedrooms, 2 bathrooms, loft, full laundry room, and private balconies
    Unit B: 3 bedrooms, 2 bathrooms, 4 balconies, and newly remodeled interiors
    Private boat dock, seawall, pool, canal views, and direct Gulf of America access
    Four separate A/C units plus individual water and power connections for each unit
    View details
    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Based on your search, we've compiled 5 Potential Opportunities for your consideration. Besides 1 Active listings in Marco Island, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    End-Unit Duplex with Lake View
    End-Unit Duplex with Lake View

    1403 Oceania Dr S, Naples, FL 34113

    $439,900
    1,544 sqft 0.11 AC lot

    End-unit duplex with lake views, den, screened lanai, and attached garage in a gated community.

    View details
    Duplex Residence with Private Pool
    Duplex Residence with Private Pool

    7674 Jacaranda Ln, Naples, FL 34114

    $599,900
    1,554 sqft 0.11 AC lot

    Attached residence offers a den, screened outdoor living, private pool and spa, plus a two-car garage.

    View details
    Duplex with Preserve Views
    Duplex with Preserve Views

    1050 ENBROOK Loop, Naples, FL 34114

    $435,000
    1,496 sqft 0.08 AC lot

    Two-bedroom villa with a den, screened lanai, updated finishes, and access to resort-style community amenities.

    View details
    Duplex With Screened Lanai
    Duplex With Screened Lanai

    1152 ENBROOK Loop, Naples, FL 34114

    $414,900
    1,503 sqft 0.10 AC lot

    Impact-resistant windows and an epoxy-finished garage add practical features.

    View details

    Marco Island, FL Duplexes Market Trends and Statistics

    Explore 1 duplexes for sale in Marco Island, FL on our real estate platform. These investment opportunities span a total of 3,754 square feet of properties for sale, with an estimated market value of $1,800,000.

    Sale prices for duplexes in Marco Island, FL average $1,800,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

    List
    Map

    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Apartment buildings 1
    Duplexes 1

    Demographics Overview

    Population 16K
    Population Growth (5Y) -9.6%
    Median Household Income $104,105
    College Educated 35.0%

    High-Yield Neighborhoods for Investment

    Identify Marco Island submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    34145 $1.8M

    Taxes & Financing

    Tax Rate (average for all types) 1.03%
    Property Tax per SF $2.28 per SF
    Tax Rate vs County Average 0.04 pp below county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Collier County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale pricing trends across core commercial property types in Collier County

    Residential Income

    Need Help?

    Reach out if you need assistance with Realmo tools or have questions about your listings

    Contact Us

    Browse Duplexes for Sale Near Marco Island, FL

    Popular Searches in Marco Island, FL

    Popular Categories

    Most Searched ZIP Codes in Marco Island, FL

    • 34145

    Featured Marco Island Real Estate Agencies

    Realmo connects you with licensed Marco Island CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

    Horizons by the Sea
    661 S. Collier Blvd. Marco Island, FL 34145
    Phone: 12393948655
    mymarcoisland.com

    Select Neighborhood

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!