Add Listing
    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

    County Road 103 San Diego, TX 78334

    View on Map
    Claim this Listing
    For Sale
    $189,900

    LAND - San Diego, TX

    Lot size:
    30.00 Acres
    Added:
    Apr 8, 2026
    Days on Market:
    8
    Last Refresh:
    Apr 15 at 2:06 am

    Property Features for County Road 103

    General Information

    Property type
    Land
    Property subtype
    Other
    Standard status
    Active
    APN
    0000001
    Lot size
    30.00 Acres

    Taxes and HOA fees

    Tax Description
    30.97 ACRES

    We can help!

    Listing Contact
    Sara Lopez
    Sara Lopez

    Listing agent Sara Lopez License #0668277

    Listing office Southern Charm Realty LLC 201 County Road 116, Alice, TX

    Listing date Apr 8, 2026

    MLS# 474587 Listing URL

    Copyright © 2026 South Texas Multiple Listing Service, LLC. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    Overview

    Unrestricted Land Near San Diego, TX

    This secluded 30.97-acre property is fully fenced and unrestricted, featuring on-site electricity and a wet-weather creek. It is located just outside San Diego, Texas, in Northeast Duval County. This land is suitable for a hunting camp, weekend retreat, or building a home in South Texas. Nueces Electric Cooperative (NEC) is installing 200-AMP electric service. As the property is not part of a subdivision, there are no Homeowners Association (HOA) rules or fees. The property is exempt from city taxes and has reduced county taxes under an agricultural exemption, resulting in an annual tax bill of about $160. The land includes South Texas brush, mesquite trees, and other native plants. There are no oil activity, pad sites, pipelines, or easements on this ranch. The property has a 60-foot-wide private driveway extending from County Road 103, providing off-the-road seclusion and privacy. It is located 4 miles from San Diego, 14 miles from Alice, and 27 miles from Freer, Texas. Approximately 8 acres of the ranch situated along Muerto Creek are encompassed within the 100-year floodplain, as set forth by the Federal Emergency Management Agency (FEMA).
    Location Intelligence

    Current Use by Public Records

    Agricultural land / Farmland

    Map

    City
    San Diego
    County
    Duval
    State
    Texas
    Longitude
    -98.2388953
    Latitude
    27.7639145

    Nearby Similar for Sale

    • $249,900

      Spacious Ranch in Duval County

      Unrestricted 40.48-acre ranch with ponds and wet-weather creek.
      CR 103 lot: 0, San Diego, TX 78334
      View Details
    • $200,000

      26-Acre Ranch in Duval County

      26-acre ranch perfect for recreation or private homestead.
      6958-6988 County Road 203, San Diego, TX 78349
      View Details
    • $90,000

      Unimproved Land Near San Diego, TX

      12 acres of unimproved land perfect for building or recreation.
      01 CR 173 lot: 0, San Diego, TX 78384
      View Details
    • $90,000

      12 Acres in San Diego

      Unimproved 12-acre property near San Diego, Texas.
      CR 173 lot: 0, San Diego, TX 78384
      View Details
    • $139,900

      21 Acres Near San Diego, TX

      21 acre ranchito, ideal for getaways or hunting retreats.
      State Highway 359, San Diego, TX 78384
      View Details
    • $220,000

      42.84 Acre Ranch in Texas

      42.84 acre ranch featuring diverse wildlife and campsite.
      County Road 173, San Diego, TX 78332
      View Details
    • $190,000

      39.23 Acres of Texas Land

      Untouched Texas landscape ideal for recreation, hunting, or building.
      CR 104 lot: 32, San Diego, TX 78384
      View Details
    • $165,000

      San Diego Land For Sale

      22.22 acre lot perfect for weekend getaway or dream home.
      7039 FM 1329, San Diego, TX 78384
      View Details
    • $170,000

      South Texas Land with Barn

      21.96 acres in San Diego, TX with barn.
      256 Coyote Crossing lot: 0, San Diego, TX 78384
      View Details
    • $100,000

      San Diego Acreage For Sale

      12.13 acres near San Diego, TX with no restrictions.
      TRACT 13 SAN DIEGO CREEK RANCH lot: 0, San Diego, TX 78384
      View Details
    • $55,000

      San Diego Land For Sale

      10 acres of South Texas brush land near San Diego.
      Tr 18 La Nina Road, San Diego, TX 78384
      View Details
    • $150,000

      South Texas Hunting and Recreational Land

      70+/- acre hunting ranch in Duval County, Texas.
      FM 3196, San Diego, TX 78384
      View Details

    FAQs

    What type of property is this?
    Agricultural land / Farmland - 30.97 acres of unrestricted, fenced land with electricity and creek.
    Where is this agricultural land / farmland located?
    The property is located at County Road 103 San Diego, TX.
    What is the asking price?
    The asking price for this property is $189,900.
    What are key features of this property?
    This property features: Unrestricted 30.97‑acre property offering freedom for various uses; On‑site electricity with new 200‑AMP service installation; Secluded location with a 60‑foot private driveway, ensuring privacy
    (361) 661-9930
    We can help!
    Listing Contact
    Sara Lopez
    Sara Lopez
    Real Estate License ID: 0668277
    Learn More
    Request Owner's contact information
    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.
    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
    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

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!