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    Port Isabel, TX
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    Port Isabel, TX Multifamily Properties for Sale

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    Corner-Lot 5-Plex Investment
    Updated: Sep 3, 2025
    Corner-Lot 5-Plex Investment

    510 S Musina, Port Isabel, TX 78578

    $498,000
    2,645 sqft 0.28 AC lot
    Fully occupied 5‑plex on two corner lots in Port Isabel
    Rental income: $4,777 per month (property currently producing income)
    Main residence: 3 bedrooms, 2.5 baths, and attached 2‑car garage
    Unit mix includes three studio efficiencies, each with a private bath, plus a 1‑bedroom, 1‑bath apartment
    Across from the city park; about a 5‑minute drive over the causeway to South Padre Island beaches
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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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    Waterfront Triplex Investment Opportunity
    Waterfront Triplex Investment Opportunity

    1109 Tarpon Ave, Port Isabel, TX 78578

    $799,999
    1,794 sqft 0.14 AC lot

    Furnished waterfront triplex near South Padre Island with boat slips.

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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 Any Listing Into an Investment Snapshot Owner equity, real caprate, 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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    Interior RV Lot
    Interior RV Lot

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

    $125,000

    Interior lot in a gated, pet-friendly RV community with a concrete pad, storage shed, and mature palm trees.

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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, featuring a boat lift and currently rented for income.

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    Based on your search, we've compiled 15 Potential Opportunities for your consideration. Besides 7 Active listings in Port Isabel, TX, we suggest exploring several alternatives: 4 properties in Nearby Cities, 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.

    Four-Unit Residential Income Property
    Four-Unit Residential Income Property

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

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

    Each unit features 2 bedrooms and 2 full bathrooms, with separate utilities and shared outdoor patio access.

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

    110 E Ling Street, South Padre Island, TX 78597

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

    Duplex for sale featuring two units with 3 bedrooms, 2.5 baths, and outdoor amenities including a private pool and fenced yard.

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    Modern Duplex Near South Beach
    Modern Duplex Near South Beach

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

    $1,100,000
    2,776 sqft 0.11 AC lot

    Modern duplex near the beach, ideal for vacation rental.

    View details
    Bayside Triplex with Bay Views
    Bayside Triplex with Bay Views

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

    $869,000
    3,184 sqft 0.11 AC lot

    Bayside triplex with bay and sunset views, featuring updated interiors and washer/dryer hookups in all units.

    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.

    Port Isabel Land For Sale
    Port Isabel Land For Sale

    751 E Clam Circle lot: 751, Port Isabel, TX 78578

    $130,000

    Residential lot in Long Island Village, Port Isabel, Texas.

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    Port Isabel Land with Amenities
    Port Isabel Land with Amenities

    728 E Clam Circle lot: 728, Port Isabel, TX 78578

    $120,000
    0.06 AC lot

    Residential lot with concrete pad and storage shed.

    View details
    San Benito Land Opportunity
    San Benito Land Opportunity

    30528 Melomar Dr. lot: 15, San Benito, TX 78586

    $92,800
    0.97 AC lot

    Nearly an acre of improved land in San Benito, TX.

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    Residential Land in La Feria, TX
    Residential Land in La Feria, TX

    523 Canada Dr. lot: 4, La Feria, TX 78552

    $40,000
    0.06 AC lot

    Residential lot suitable for placing a mobile home.

    View details

    Port Isabel, TX Multifamily Properties Market Trends and Statistics

    Explore 7 multifamily 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 multifamily 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

    Apartment buildings 3
    Mobile home & RV parks 3
    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 $2.1M

    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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