Sign Up Successful!
You now have access to more from Realmo!
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings

    4550 Fm 621 San Marcos, TX 78666

    Sponsored
    For Sale
    $364,000

    LAND - San Marcos, TX

    Lot size:
    10.00 Acres
    Days on Market:
    69
    Last Refresh:
    Feb 1 at 4:06 am

    Property Features for 4550 Fm 621

    General Information

    Property type
    Land
    Property subtype
    Other
    Standard status
    Active
    APN
    2G0308000001300000
    Lot size
    10.00 Acres

    We can help!

    Listing Contact
    Knolly Williams

    eXp Realty, LLC (888) 519-7431

    Listing agent Knolly Williams (888) 519-7431 License #0510003

    Listing date Nov 25, 2025

    MLS# 597731 Listing URL

    Copyright © 2025 Central Texas Multiple Listing Service. 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

    Unrestricted Land Near San Marcos

    This is a 10-acre tract of unrestricted land with frontage on FM 621, suitable for residential, agricultural, or commercial use. The property is located just outside San Marcos, offering convenient access to HWY 123, I-35, and the corridor toward Seguin and New Braunfels. The land features a mix of open pasture and light tree cover. It is currently ag-exempt for low taxes and has level, usable terrain with paved road access. The property is located within the San Marcos CISD school district. It is located close to San Marcos shopping, dining, Texas State University, and the San Marcos River. The property is ready for development and delivers flexibility and future potential for a dream home, small farm, or business venture.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Commercial land

    Suggested Use

    Realty agency Building Supply Spa & Massage Auto Repair Shop Hair Salon Nail Salon Kitchen & Bath Storage Facility Electrical Service Convenience Store

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

    Location Insight

    • Map
    • Local Demand
    City
    San Marcos
    County
    Hays
    State
    Texas
    Longitude
    -97.888138
    Latitude
    29.817862

    Nearby Similar for Sale

    • $299,000
      1,604 SF

      San Marcos Mixed-Use Investment

      Centrally located mixed-use property near Texas State University.
      512 Valley St, San Marcos, TX 78666
      View Details
    • $964,000
      5,548 SF

      San Marcos Multifamily Investment Opportunity

      Unique San Marcos property with multiple homes and development potential.
      1000 Advance St, San Marcos, TX 78666
      View Details
    • $324,900
      1,497 SF

      San Marcos Duplex Investment Opportunity

      Short-term rental capable duplex near Texas State University.
      1026 Haynes St, San Marcos, TX 78666
      View Details
    • $790,000
      5,295 SF

      Mixed-Use Investment Near Texas State

      Two adjoining properties with commercial and multifamily potential near university.
      521 W Hutchison St, San Marcos, TX 78666
      View Details
    • $1,995,000
      2,300 SF

      Hill Country Retreat with Event Venue

      20-acre Hill Country retreat near Wimberley and San Marcos.
      1218 Oakwood Loop, San Marcos, TX 78666
      View Details
    • $1,495,000
      12.00 Acres

      San Marcos Ranch with Income Potential

      12-acre Hill Country retreat with custom home, chapel, and horse barn.
      0000 Oakwood Loop, San Marcos, TX 78666
      View Details
    • $990,000
      6,600 SF

      San Marcos Duplex Portfolio

      Three cash-flowing duplexes in San Marcos, Texas.
      1009-1019 Advance St, San Marcos, TX 78666
      View Details
    • $2,500,000
      24.00 Acres

      Hill Country Ranch with Stone Chapel

      24-acre ranch with log cabin, stone chapel, and event venue.
      1218 Oakwood Loop, San Marcos, TX 78666
      View Details
    • $282,500
      1,400 SF

      San Marcos Investment Duplex Opportunity

      Duplex near Texas State University, ideal for leasing or owner-occupancy.
      1030/1032 Haynes St, San Marcos, TX 78666
      View Details
    • $1,500,000
      3,800 SF

      Versatile Commercial Building in San Marcos

      Flexible commercial space with office and warehouse areas for sale.
      2108 Old Ranch Road 12, San Marcos, TX 78666
      View Details
    • $1,750,000
      4,814 SF

      Versatile Mixed-Use Commercial Property

      Mixed-use property with high-traffic location and flexible layout.
      715 W Hopkins St, San Marcos, TX 78666
      View Details
    • $650,000
      5,268 SF

      San Marcos Multifamily Property

      Multifamily property near downtown and university with conversion potential.
      121 Scott St, San Marcos, TX 78666
      View Details

    FAQs

    What type of property is this?
    Land - 10 acres of unrestricted land with FM 621 frontage.
    Where is this land located?
    The property is located at 4550 Fm 621 San Marcos, TX.
    What is the asking price?
    The asking price for this property is $364,000.
    What are key features of this property?
    This property features: - Unrestricted 10-acre tract suitable for residential, agricultural, or commercial use.; - Excellent FM 621 frontage with easy access to HWY 123 and I-35, near San Marcos.; - Ag-exempt status for low property taxes.
    (512) 791-1572
    Request Owner's contact information
    4550 Fm 621 San Marcos, TX 78666
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    4550 Fm 621
    San Marcos, TX 78666
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    4550 Fm 621 San Marcos, TX 78666
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    We can help!
    Listing Contact
    Knolly Williams
    Real Estate License ID: 0510003
    (512) 791-1572
    Learn more
    Google sign-in failed. Please try again or use another login method.