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    Port Isabel, TX
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    Port Isabel, TX Residential Income Properties for Sale

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    Five-Plex Apartment Building on Corner Lots
    Updated: Sep 3, 2025
    Five-Plex Apartment Building on Corner Lots

    510 S Musina, Port Isabel, TX 78578

    $498,000
    2,645 sqft 0.28 AC lot
    Fully occupied five‑plex on two prominent corner lots
    Zoned MF
    Main residence: 3 bedrooms, 2.5 baths, attached 2‑car garage
    Three studio efficiencies with private baths plus one 1‑bedroom, 1‑bath apartment
    0.2755‑acre lot with 2,645 SF building
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    This listing looks promising.

    Here's a quick look at some key insights for

    510 S Musina, Port Isabel, TX 78578

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    • Est. Cap Rate

      4%
      NOI ÷ price

    • Est. NOI

      $20K
      Annual

    • Price @ 7% Cap

      $286K
      Suggested

    • Property Type

      Single Family Residence
      Built 1968
    View Property Analytics
    Waterfront Multi-Use Income Property
    Updated: Mar 21
    Waterfront Multi-Use Income Property

    418 W Highway 100, Port Isabel, TX 78578

    $9,000,000
    25,257 sqft 4.47 AC lot
    High income‑producing multi‑use waterfront asset with diversified income streams.
    Significant revenue growth (over 50% year‑over‑year) driven by recent upgrades and improved management.
    Strong NET income and immediate cash flow.
    Additional land available for future development.
    Includes 13 fully occupied apartments and 24 hotel rooms.
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    Triplex with Heated Indoor Pool
    Triplex with Heated Indoor Pool

    1109 Tarpon Ave, Port Isabel, TX 78578

    $799,999
    1,794 sqft 0.14 AC lot

    Three-unit waterfront triplex with a rare indoor heated pool, furnished interiors, and private patio views over the canal.

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    Waterfront Hotel, Marina and Rentals
    Waterfront Hotel, Marina and Rentals

    418 W Highway 100, Port Isabel, TX 78578

    $9,000,000
    25,257 sqft

    Multi-use waterfront property with 24 hotel rooms, 13 fully occupied apartments, 28 boat slips, and on-site dining and marine services.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    RV Lot in Gated Community
    RV Lot in Gated Community

    538 W Clam Circle, Port Isabel, TX 78578

    $125,000
    0.06 AC lot

    Well-landscaped RV lot with amenities in Port Isabel, Texas.

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    RV Lot in Gated Community
    RV Lot in Gated Community

    538 W Clam Circle lot: 538, Port Isabel, TX 78578

    $125,000

    RV lot in Long Island Village with a concrete pad, storage shed, and cable available, zoned A-C.

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    Waterfront RV Lot with Boat Lift
    Waterfront RV Lot with Boat Lift

    374 Sand Dollar lot: 374, Port Isabel, TX 78578

    $186,000

    Waterfront RV lot in a resort setting, currently rented, with a boat lift and cable available utilities.

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    Based on your search, we've compiled 17 Potential Opportunities for your consideration. Besides 7 Active listings in Port Isabel, TX, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 2 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Opportunities in Nearby Cities

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

    Quadplex with Separate Water and Electric Meters
    Quadplex with Separate Water and Electric Meters

    110 E Pike St., South Padre Island, TX 78597

    $1,100,000
    3,350 sqft 0.03 AC lot

    Quadplex zoned R featuring a shared patio and assigned parking, with each unit separately metered for water and electric.

    View details
    Triplex with Private Pool
    Triplex with Private Pool

    110 E Ling Street, South Padre Island, TX 78597

    $1,100,000
    5,744 sqft 0.11 AC lot

    Triplex on a 0.1148-acre lot with a private pool and fully fenced yard.

    View details
    Modern Duplex with Private Pool
    Modern Duplex with Private Pool

    110 E Ling St., South Padre Island, TX 78597

    $1,100,000
    3,506 sqft 0.11 AC lot

    Modern duplex with heated private pool, privacy-fenced yard, and two covered patios, built in 2019 and zoned R.

    View details
    Triplex with Balcony and Deck
    Triplex with Balcony and Deck

    111 W Marisol Dr., South Padre Island, TX 78597

    $865,000
    3,184 sqft 0.11 AC lot

    2018-built triplex in MF zoning with furnished units, washer/dryer hookups, and balcony plus deck areas.

    View details

    Potential Development Sites for Consideration

    Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

    Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

    Waterfront Land in Pirates Cove
    Waterfront Land in Pirates Cove

    Anne Bonny lot: 2, Port Isabel, TX 78578

    $169,000
    0.15 AC lot

    Residential lot with direct water access in gated community.

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    Waterfront Land in Port Isabel
    Waterfront Land in Port Isabel

    142 E Bonnet Circle lot: 142, Port Isabel, TX 78578

    $285,000

    Waterfront land with boat lift and fishing deck.

    View details
    Residential Land in Gated Subdivision
    Residential Land in Gated Subdivision

    Jean Lafitte lot: 3, Port Isabel, TX 78578

    $120,000
    0.21 AC lot

    Residential land for sale in Port Isabel, Texas.

    View details
    Waterfront Lot in Port Isabel
    Waterfront Lot in Port Isabel

    814 Tarpon Ave lot: 28, Port Isabel, TX 78578

    $228,000
    0.11 AC lot

    Waterfront lot with bulkhead in prime Port Isabel location.

    View details

    Off-Market Properties in Port Isabel, TX

    Consider similar Off-Market properties in Port Isabel, TX. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    Shore Dr
    Land

    0 Shore Dr, Port Isabel, TX 78578

    Value Estimation by Request
    View details
    Shore Dr
    Land

    0 Shore Dr, Port Isabel, TX 78578

    Value Estimation by Request
    View details

    Port Isabel, TX Residential Income Properties Market Trends and Statistics

    Explore 9 residential income properties for sale in Port Isabel, TX, showcased through 7 active listings on our real estate platform. These investment opportunities span a total of 54,953 square feet of properties for sale, with an estimated market value of $19,733,999.

    Sale prices for residential income properties in Port Isabel, TX start at $125,000, averaging $2,819,142, and reaching up to $9,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Multifamily properties 7
    Apartment buildings 3
    Mobile home & RV parks 3
    Short term rental properties 1
    Triplexes 1

    Demographics Overview

    Population 10K
    Population Growth (5Y) -12.4%
    Median Household Income $52,041
    College Educated 34.6%

    High-Yield Neighborhoods for Investment

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

    Neighborhood Average Price
    78578 $2.8M

    Taxes & Financing

    Tax Rate (average for all types) 1.71%
    Property Tax per SF $20.64 per SF
    Tax Rate vs County Average 0.10 pp below county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Cameron County

    New Delisted

    Total CRE Inventory on Market (SF)

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