San Marcos, TX 78666 (Hays County)
About this property
Custom-built home with an open floor plan designed for both everyday living and entertaining. The kitchen is the centerpiece of the home, featuring two oversized islands, each with its own sink, custom cabinetry, double ovens, and a gas cooktop. The living room is anchored by a fireplace and opens seamlessly to the kitchen and dining areas. A large, sound-insulated flex room above the garage provides additional living space and can serve as a media room, game room, home gym, office, or studio. The owner's suite includes private access to the back porch, dual walk-in closets with built-ins, and an ensuite bath with separate vanities, a soaking tub, oversized walk-in shower, and abundant storage. Expansive covered porches with vaulted tongue-and-groove wood ceilings overlook the landscaped backyard. Mature trees provide shade and privacy around the swimming pool, and an outdoor shower offers added convenience after a swim or time spent outdoors. A plumbed outbuilding provides flexible space for a workshop, pool house, guest quarters, storage, or future customization. This property offers multiple indoor and outdoor living spaces, flexible-use areas, and thoughtful details throughout.
Property details
Location
About the Area
3121 Summit Ridge 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 The Damron Group REALTORS.