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    521 City Island Ave Bronx, NY 10464

    For Sale
    $12,000,000

    3-acre waterfront property with marina and development potential.

    Lot size:
    3.00 Acres

    Property Features for 521 City Island Ave

    General Information

    Lot size
    3.00 Acres

    Source: Douglas Elliman | Downtown Flatiron District Agent Sara Gayer

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    Overview

    Waterfront Development Opportunity with Marina

    This property presents a development opportunity in a desirable waterfront location. It features 3 acres of land and 3 acres of water, including 120 boat slips. Approved development plans and permits are in place for 44 condos or townhouses, totaling more than 60,000 square feet. The location offers close proximity to Manhattan and easy access to Long Island, Westchester, Connecticut, and New Jersey. The property has waterfront development potential and offers possibilities to increase the buildable square footage. The current marina income is $239,200 with 80 boats, expandable to 120 boats with additional income of $120,000. The property offers water views looking at the New York City skyline and bridges.
    Insight Report Location Intelligence

    Current Use by Public Records

    Professional Contracting Inc General Contractor

    Suggested Use

    Law Firm Restaurant Realty agency Spa & Massage Dental Office Hair Salon Clothing Store Nail Salon Food Market Grocery Store

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

    Location Insight

    • Map
    • Local Demand
    City
    Bronx
    County
    Bronx
    State
    New York
    Longitude
    -73.790002
    Latitude
    40.852159

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    FAQs

    What type of property is this?
    Land - 3-acre waterfront property with marina and development potential.
    Where is this land located?
    The property is located at 521 City Island Ave Bronx, NY.
    What is the asking price?
    The asking price for this property is $12,000,000.
    What are key features of this property?
    This property features: - Approved development plans and permits in place for 44 condos or townhouses with over 60,000 sq. ft.; - Prime waterfront location with 3 acres of land and 3 acres of water including 120 boat slips.; - Existing marina generating $239,200 in income, expandable to $120,000 additional income.
    (917) 385-2056
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    521 City Island Ave Bronx, NY 10464
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    Bronx, NY 10464
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    Realmo Value Estimation

    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.

    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.

    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
    521 City Island Ave Bronx, NY 10464
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