Positioned in a desirable Caldwell County corridor with strong regional connectivity and meaningful scale, this 167 +/- acre offering presents an exceptional opportunity for developers, investors, land bankers, or buyers seeking a property with both immediate utility and long-term upside. Combining county road frontage with multiple access points, existing infrastructure, improvements, water features, and agricultural valuation, the property offers flexibility across a wide range of future development and investment strategies. Access is established through a private gated entrance and supported by multiple entry locations along county road frontage, creating optionality for future planning, phased development, subdivision concepts, or continued ranch ownership. The property benefits from existing utility infrastructure including water service through Martindale Water Supply Corporation with water line and meter already in place, along with onsite power serviced by Bluebonnet Electric Cooperative. The landscape offers a balanced mix of open grazing areas, mature hardwoods, native brush, and tall grasses that create both visual appeal and practical usability. A large approximately 2-acre pond, along with multiple additional ponds throughout the property, enhances aesthetics, livestock functionality, and long-term recreational value while contributing to attractive homesite placement opportunities across the ranch. Existing improvements add immediate functionality and reduce the effort required to begin using or planning the property. A rustic-style residence with covered outdoor living areas provides a comfortable ranch headquarters or interim occupancy, while the accompanying barn-style structure offers flexible utility for equipment storage, workshop space, operational use, or adaptive future conversion. Additional livestock improvements support current agricultural operations and reinforce the property's cattle-ready status. Currently benefiting from agricultural exemption for extremely low annual carrying costs, the ranch offers an attractive holding profile while preserving future flexibility. Abundant wildlife, numerous potential homesites, existing infrastructure, and strategic location position this property as a compelling opportunity for investment, development consideration, recreational ownership, or long-term land appreciation. Conveniently located approximately 8 +/- miles from Lockhart and Highway 183, 25 +/- miles from San Marcos, and within approximately 55 +/- miles of both Austin and San Antonio, this property sits within reach of some of Central Texas strongest continuing growth markets. 167 +/- Acres in Caldwell County Developer or subdivision / investment potential County road frontage with multiple entry points Private gated entrance driveway Water line and meter in place serviced by Martindale WSC Power onsite serviced by Bluebonnet Electric Coop Ag exempt for extremely low annual tax rates Large 2 acre pond Multiple ponds House Barndo Livestock barn Large oak trees and brush with tall grasses Cattle ready Wildlife abundant Numerous homesite potential 8 +/- miles from Lockhart and HWY 183 25 +/- miles from San Marcos 55 +/- miles from Austin & San Antonio
For sale
$6,346,000
5501 Old Colony Line Rd, Lockhart, TX 78644
0beds
0baths
--sqft
Farm
Built in ----
167 Acres Lot
$5,676,900 Zestimate®
$--/sqft
$-- HOA
What's special
Livestock barnRustic-style residenceMultiple pondsPrivate gated entrance driveway
- 80 days
- 44
- 2
Zillow last checked:
Listing updated:
Listed by:
Gaines Slade TREC #694660 (334) 221-7659,
Coldwell Banker D'Ann Harper
Source: LERA MLS,MLS#: 1999632
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 0
- Bathrooms: 0
Property
Lot
- Size: 167 Acres
- Features: Agricultural
Details
- Parcel number: 15523
- Other equipment: Small Tanks
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Farm
Utilities & green energy
- Water: Other
- Utilities for property: Electricity Available, Water Available, Other
Community & HOA
Location
- Region: Lockhart
Financial & listing details
- Tax assessed value: $2,394,290
- Price range: $6.3M - $6.3M
- Date on market: 7/11/2026
- Cumulative days on market: 81 days
- Listing terms: Cash,Conventional
Estimated market value
$5,676,900
$5.34M - $6.02M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 7/11/2026 | Listed for sale | $6,346,000+28.8% |
Source: | ||
| 12/9/2025 | Listing removed | $4,926,500 |
Source: | ||
| 4/28/2025 | Price change | $4,926,500-8.3% |
Source: | ||
| 3/3/2025 | Price change | $5,369,548-5.4% |
Source: | ||
| 10/18/2024 | Price change | $5,678,000+8.2% |
Source: | ||
| 3/15/2023 | Listed for sale | $5,250,000+18.7% |
Source: | ||
| 3/29/2022 | Sold | -- |
Source: | ||
| 1/31/2022 | Pending sale | $4,424,000 |
Source: | ||
| 1/20/2022 | Contingent | $4,424,000 |
Source: | ||
| 1/20/2022 | Pending sale | $4,424,000 |
Source: | ||
| 11/30/2021 | Listed for sale | $4,424,000 |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $2,394,290 -1.1% |
| 2025 | $6,221 -0.3% | $2,420,560 -17% |
| 2024 | $6,237 -0.8% | $2,915,010 +25% |
| 2023 | $6,288 -76.6% | $2,331,600 +47% |
| 2022 | $26,928 | $1,586,220 +48.9% |
| 2021 | -- | $1,065,476 +17.9% |
| 2020 | -- | $903,630 +48.5% |
| 2018 | $2,216 | $608,560 +491% |
| 2017 | -- | $102,970 +2% |
| 2016 | -- | $100,970 +1.5% |
| 2015 | -- | $99,490 +1039.6% |
| 2014 | -- | $8,730 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: 78644
Nearby schools
Schools provided by the listing agent
- District: Lockhart Isd
Source: LERA MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.







