San Marcos, TX 78666 (Hays County)
About this property
No HOA! Fully separate 1BR ADU perfect for revenue or extended family. This heavily treed, 6.19 ac of gorgeous Hill Country is located just outside the city limits of San Marcos, yet still close to everything SM has to offer. The fully updated 2,085 sq ft, 4 bed, 2 bath primary home features a main living area w/high ceilings & a wood burning fireplace. Sizeable dining room can easily accommodate an 8+ person table. Kitchen features plenty 'o storage w/contemporary cabinets, quartz countertops & a coffee bar. Laundry room is conveniently located off the kitchen. The spacious primary bedroom includes an ensuite bathroom, w/a tiled shower, dual vanities and his & her walk-in closets. Updated LVP flooring & tile throughout. Remaining bedrooms are generously sized! New Anderson windows in 2017. The large, 572 sq ft detached, fully insulated 2-car garage has workshop/storage room, power, & a window ac. The separate ADU, built in 2021, is ADA compliant, w/a ramp from LARGE, attached, custom built carport. The ADU's 800 sq ft interior has a full kitchen & washer/dryer hook ups. Living room & bedroom are huge. ADA accessible shower. Three storage sheds are available, w/the largest at 427 sq ft & insulated. Standing seam metal roof on main home, detached garage, ADU & carport. Both primary & ADU come equipped w/fully owned solar panels & large back-up batteries at a cost of $98K! Two RV power hookups, and one RV sewer connection. Multiple fenced-in areas behind the home for your animal needs. Chickens, goats, a cow or two? Walk the land & try not to get lost! Refrigerator and W&D in each home convey. Texas State, 5 miles away; HEB 6 mi; Hospital & Lowe's 9 mi; Target 10 mi; Outlet Malls 12 mi. Buyer to confirm taxes, schools, proximities, sq ft & lot size. Total sq ft, # of bedrooms and baths include both the main home & ADU. It’s the perfect home base for those who value space, nature, & a quiet neighborhood vibe without sacrificing proximity to city amenities.
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.