San Marcos, TX 78666 (Hays County)
About this property
If the grid goes down, this property keeps the lights on. Set on 6.19 oak-canopied acres just outside San Marcos city limits, 228 Deertrail Drive is a self-sufficient 2-home compound built for people who value independence from utility bills, neighbors, & the unpredictability that comes with power grids. Both the 2,085 sq ft primary home & the separate 800 sq ft accessory dwelling unit (ADU) run on a $98k fully owned solar & battery system: 9.76 kilowatts of roof-mounted panels paired w/3 Enphase Encharge battery units storing 30.24 kWh of backup power. No HOA. No city utilities dependency. No monthly solar payment- it's paid in full. The primary home has been thoroughly updated: Luxury vinyl plank & tile throughout, quartz countertops, contemporary cabinetry w/a coffee bar, a wood-burning fireplace, high ceilings in the main living area, & a dining room that seats 8 comfortably. The primary suite includes dual vanities, a tiled walk-in shower, & his-&-her walk-in closets. Three more bedrooms are generously proportioned. Updated with Anderson windows in 2017. A 572 sq ft detached garage, fully insulated w/a workshop & window AC, is ready for projects. The ADU, built in 2021, is a completely independent residence: Full kitchen, washer/dryer hookups, ADA-compliant throughout w/a ramped carport entry & roll-in shower. Live in one home & rent the other. Give aging parents a place of their own — on your land, on their terms. Two RV power hookups & a dedicated RV sewer connection mean your rig has a permanent home base. Multiple fenced areas accommodate chickens, goats, or larger animals. Three storage sheds, the largest at 427 sq ft & insulated. Standing seam metal roofs on every structure. Refrigerators, washers, dryers in both homes, convey. Hays CAD appraised/market value is $883,370! Texas State University: 5 miles. HEB: 6 miles. Hospital: 9 miles. No HOA, no city limits, no compromises. This is the kind of property people wish they had bought two winters ago.
Property details
Location
About the Area
228 Deertrail Dr is located in San Marcos, Texas, in Hays County. Hays County is one of the fastest-growing counties in the United States, driven by the explosive growth of San Marcos and Kyle-Buda corridor connecting Austin and San Antonio. The county blends Hill Country character in its western reaches, Wimberley, Dripping Springs, Driftwood, with rapidly urbanizing communities along the I-35 corridor.
The Blanco River and Barton Creek headwaters flow through Hays County, carving spring-fed swimming holes beloved by generations of Texans. Jacob's Well, a natural cylindrical karstic spring, and the swimming holes of Blue Hole Regional Park draw visitors year-round. The Edwards Plateau escarpment creates dramatic topographic relief in the western half of the county.
San Marcos had an estimated population of 68,920 as of 2023. The 78666 zip code has a median household income of $55,478, a median home value of $271,900, and a median age of 27. The average household size is 2.35 people.
Texas State University anchors San Marcos, supporting a significant education and healthcare sector. The I-35 corridor has attracted major distribution centers and manufacturing. The western Hill Country communities of Wimberley and Dripping Springs have become destination wine, dining, and retreat markets commanding premium real estate prices.
Demographic data sourced from the U.S. Census Bureau, American Community Survey 5-Year Estimates (2023).
Listing information © 2026 Unlock MLS (ACTRIS). All data provided AS IS. Information is deemed reliable but not guaranteed. Listing courtesy of Century 21 Randall Morris & As.