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    105 Acres with River Frontage Title is generated by Realmo AI

    4194 SE River Road, Martindale, TX 78655

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    Claim this Listing
    For Sale
    $7,999,000

    Unimproved Land - Martindale, TX

    Type:Unimproved Land
    Lot size:
    105.40 Acres
    Added:
    Oct 28, 2025
    Days on Market:
    216
    Last Refresh:
    May 31 at 8:06 pm

    Property Features for 4194 SE River Road

    General Information

    Property type
    Land
    Property subtype
    Unimproved Land
    Exterior features
    Fence
    Fencing
    Fenced
    Standard status
    Active
    APN
    95657
    Lot size
    105.40 Acres

    Utilities

    Water front features
    Beach Access, Beach Front, Creek, River Front, Waterfront
    Water front
    1

    Building Details

    Architectural style
    Other

    We can help!

    Listing Contact
    Rozann Marquis

    Listing agent Rozann Marquis License #0688184

    Listing office Rozann Marquis 20 VICTORIA DR, ROWLETT, TX

    Listing date Oct 28, 2025

    MLS# 21094094 Listing URL

    Copyright © 2026 North Texas Real Estate Information Systems, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Half‑mile of San Marcos River frontage: a rare and valuable feature.
    • Prime location in the Austin‑San Antonio‑Houston corridor.
    • 105‑acre estate suitable for development, subdivision, or private estate.
    • Convenient access to major cities: Only 40 minutes to Austin and 45 minutes to San Antonio.
    • Level topography, paved access, and available utilities.
    • Investment strength, natural beauty, and legacy potential.

    Overview

    This 105-acre estate features over half a mile of direct San Marcos River frontage. Positioned within the Austin–San Antonio–Houston corridor, this property offers investment potential and natural beauty. The land includes private, accessible riverbank with clear flowing water, open pastureland, and mature oaks. It is suited for development, subdivision, recreation, hunting, fishing, equestrian use, or a luxury estate. The property is located 40 minutes from Austin, 45 minutes from San Antonio, and under two hours from Houston, offering privacy without isolation. It is minutes from TX-130 and I-10, providing connectivity. The level topography, paved access, and available utilities support estate lots, eco-resort, or master-planned community concepts. It is suited for custom riverfront homes, private docks, equestrian facilities, and multi-generational enjoyment. This property is located within minutes of San Marcos.
    Property Profile Location Intelligence

    Current Use by Public Records

    Land

    Map

    City
    Martindale
    County
    Caldwell
    State
    Texas
    Longitude
    -97.838014
    Latitude
    29.814552

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    FAQs

    What type of property is this?
    Land - Exceptional Central Texas riverfront property with over half-mile frontage.
    Where is this land located?
    The property is located at 4194 SE River Road Martindale, TX.
    What is the asking price?
    The asking price for this property is $7,999,000.
    What are key features of this property?
    This property features: Half‑mile of San Marcos River frontage: a rare and valuable feature.; Prime location in the Austin‑San Antonio‑Houston corridor.; 105‑acre estate suitable for development, subdivision, or private estate.
    (972) 805-7587
    We can help!
    Listing Contact
    Rozann Marquis
    Real Estate License ID: 0688184
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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
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