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    510 Herrin Ln Bertram, TX 78605

    Sponsored
    For Sale
    $4,200,000

    Contemporary/Modern,Southwestern, Farm/Ranch - Bertram, TX

    Type:Farm
    Property size:
    3,804 SF
    Lot size:
    43.81 Acres
    Days on Market:
    5
    Last Refresh:
    Jan 23 at 1:06 am

    Property Features for 510 Herrin Ln

    General Information

    Property type
    Residential
    Property subtype
    Farm
    Standard status
    Active
    Rooms
    Basement, Bathroom 1, Bathroom 2, Bedroom 1, Bedroom 2, Bedroom 3
    Bedrooms
    3
    Bathrooms
    2
    APN
    000000106046
    Parking features
    Carport, Covered
    Patio and Porch features
    Patio, Porch
    Interior features
    Built-in Wine Cooler, Cable Tv Available, Chandelier, Decorative Lighting, Double Vanity, Eat-in Kitchen, High Speed Internet Available, In-law Suite Floorplan, Kitchen Island, Natural Woodwork, Open Floorplan, Pantry, Walk-in Closet(s), Second Primary Bedroom
    Exterior features
    Covered Patio/Porch, Storage, Other
    Fireplace
    1
    Basement Y/N
    1
    Appliances
    Oven - Double, Range, Range - Gas, Refrigerator, Water - Filter, Water - Purifier, Water - Softener
    Size
    3,804 SF
    Lot size
    43.81 Acres

    Utilities

    Utilities
    Cable Available
    Heating system
    Central, Fireplace(s), Propane (Heating)
    Cooling system
    Ceiling Fan(s), Central Air, Electric

    Building Details

    Year built
    2014
    Floors in Building
    1
    Flooring type
    Hardwood, Tile, Tile - Ceramic, Wood
    Building materials
    Concrete
    Architectural style
    Contemporary
    Additional Structures
    Storage

    We can help!

    Listing Contact
    Glenda Hall
    Glenda Hall

    Heart of Texas Land & Home (254) 749-6307 [email protected]

    Listing agent Glenda Hall (254) 362-5370 License #0578236

    Listing date Jan 19, 2026

    MLS# 21147518 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.

    Learn more

    Overview

    Hill Country Sanctuary Near Bertram

    Located just outside Bertram, this Hill Country property offers a unique living experience on 43.81 acres. The residence is a partially earth-sheltered concrete structure designed for durability, energy efficiency, and a temperature-stable environment. The home features reinforced concrete and steel construction. Inside, the living spaces include hardwood and slate flooring and abundant natural light. The kitchen is equipped for cooking with a BlueStar gas range and premium appliances. Advanced air filtration and a whole-home water purification system are installed. The property includes a spring-fed pond that attracts wildlife. The acreage is suitable for agricultural uses, including the potential for a boutique wine vineyard. An insulated steel outbuilding with multiple roll-up doors provides workshop or storage space, along with separate guest or multi-generational living quarters. Water-capture systems and dual septic setups are in place to support a self-sustaining lifestyle. The home has 3804 square feet of living space.
    Location Intelligence

    Current Use by Public Records

    Vineyards

    Map

    City
    Bertram
    County
    Burnet
    State
    Texas
    Longitude
    -98.12519797
    Latitude
    30.74208315

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    FAQs

    What type of property is this?
    Farm - Unique earth-sheltered home on 43+ acres with potential vineyard.
    Where is this farm located?
    The property is located at 510 Herrin Ln Bertram, TX.
    What is the asking price?
    The asking price for this property is $4,200,000.
    What are key features of this property?
    This property features: - Unique earth-sheltered concrete construction provides exceptional durability, energy efficiency, temperature stability, and a negative ion-rich indoor environment.; - Expansive acreage in the Texas Hill Country with scenic views, a spring-fed pond attracting wildlife, and potential for agricultural pursuits like a boutique vineyard.; - Insulated steel outbuilding with roll-up doors offers flexible workshop/storage space and separate guest/multi-generational living quarters.
    (254) 362-5370
    Request Owner's contact information
    510 Herrin Ln Bertram, TX 78605
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    Bertram, TX 78605
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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
    510 Herrin Ln Bertram, TX 78605
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    We can help!
    Listing Contact
    Glenda Hall
    Glenda Hall
    Real Estate License ID: 0578236
    (254) 362-5370
    Learn more
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