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    128 Saturn Ln South Padre Island, TX 78597

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    Sponsored
    For Sale
    $2,690,000

    Duplex - South Padre Island, TX

    Type:Duplex
    Property size:
    6,820 SF
    Days on Market:
    1
    Last Refresh:
    Mar 25 at 5:06 pm

    Property Features for 128 Saturn Ln

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Duplex
    Standard status
    Active
    Zoning
    C1
    Rooms
    Bathroom 1, Bathroom 2, Bathroom 3, Bathroom 4, Bathroom 5, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5
    Bedrooms
    12
    Bathrooms
    12
    Parking
    2
    Parking features
    Garage
    Interior features
    Cabinets-Custom, Ceiling Fan(s), Kitchen Island, Smoke Detector, Washer/Dryer Hook-up, Wet Bar
    Exterior features
    Pool-Heated, Pool-Outdoor
    Appliances
    Dishwasher, Dryer, Microwave, Refrigerator, Washer, Washer/Dryer Combo
    Size
    6,820 SF

    Utilities

    Cooling system
    Central Air, Electric

    Building Details

    Year built
    2025
    Number of units
    2
    Flooring type
    Laminate, Tile, Wood
    Building materials
    Block, Stucco
    Roof type
    Metal
    Architectural style
    Other

    We can help!

    Listing Contact
    Tony Altermatt

    NextHome on the Coast

    Listing agent Tony Altermatt

    Listing date Mar 25, 2026

    MLS# 106042 Listing URL

    Copyright © 2026 South Padre Island 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.

    Learn more

    Property Insight Report

    Overview

    South Padre Island Duplex Opportunity

    This property features an entire building with two mirror-image townhomes, each offering 6 bedrooms and 3 ensuite baths. Designed to accommodate up to 40 guests, it is suited for high-volume short-term rentals or multi-family use. Each unit includes private pools and expansive entertainment areas with wet bars. The property also features 14'x18' decks showcasing water views. Located across Gulf Blvd., it provides access to two beach access points, Blackbeard's restaurant, and Dollar General, all within walking distance. With no HOA restrictions, investors have the freedom to customize, brand, or expand rental strategies. The property, located in South Padre Island, Texas, has a size of 6820 square feet and sits on a lot of 0 acres. The zoning is C1. This property delivers flexibility and value, whether for dual income streams, a vacation compound, or a long-term asset in a high-demand market.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Restaurant Law Firm Building Supply Dental Office Spa & Massage Center Real Estate Agency Auto Repair Shop Big Box & Wholesale Store Nail Salon Auto Parts Store

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

    Location Insight

    • Map
    • Local Demand
    City
    South Padre Island
    County
    Cameron
    State
    Texas
    Longitude
    -97.167569
    Latitude
    26.117698

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    FAQs

    What type of property is this?
    Duplex - Two townhomes perfect for short-term rentals near the beach.
    Where is this duplex located?
    The property is located at 128 Saturn Ln South Padre Island, TX.
    What is the asking price?
    The asking price for this property is $2,690,000.
    What are key features of this property?
    This property features: - Entire building featuring two mirror-image townhomes, each boasting 6 bedrooms and 3 ensuite baths, with the capacity to host up to 40 guests.; - High-income potential as a short-term rental or multi-family property.; - Each unit includes a private pool and expansive entertainment areas complete with wet bars.
    (956) 617-1940
    Request Owner's contact information
    128 Saturn Ln South Padre Island, TX 78597
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    South Padre Island, TX 78597
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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
    128 Saturn Ln South Padre Island, TX 78597
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    We can help!
    Listing Contact
    Tony Altermatt
    Real Estate License ID: 0691496
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