Round Rock, TX 78664 (Williamson County)
About this property
Rarely does a property offer this level of flexibility, privacy, and usable land in the heart of Round Rock. Situated on just over one acre across two separate lots, this extensively updated property features a beautifully renovated main home plus a fully permitted guest house with its own address, separate utilities, private driveway, and climate-controlled garage - ideal for multigenerational living, guests, or a home-based business. The 2,382-square-foot main home has been thoughtfully updated with smooth ceilings, luxury vinyl plank and tile flooring, fresh interior and exterior paint, replacement windows and doors, updated lighting, and modern finishes throughout. The spacious living room with a brick fireplace flows into the dining area and updated kitchen featuring granite countertops, abundant cabinetry, a double oven, and newer stainless steel appliances. A dedicated office offers work-from-home flexibility, while the oversized primary suite includes a remodeled walk-in shower, brand-new dual-sink vanity, and generous closet space. Outside, mature oak trees shade an expansive backyard and covered patio complete with a misting system and solar lighting. The approximately 504-square-foot guest house sits on its own separately addressed lot and features one bedroom, one-and-a-half baths, a full kitchen, vaulted wood ceilings, covered porch, and fenced yard. A separate four-car driveway, independent utilities, RV hookup with water and sewer dump, and a 656-square-foot climate-controlled garage/workshop add exceptional versatility. Additional improvements include updated HVAC with UV air purification, water softener, whole-home security system with cameras, remodeled primary bath, and newer flooring, paint, lighting, and appliances. Just minutes from HEB, Dell, Kalahari Resort, Old Settlers Park, Round Rock Premium Outlets, and I-35, this one-of-a-kind property offers the rare combination of space, flexibility, and everyday convenience.
Property details
Location
About the Area
1433 Windcrest Dr is located in Round Rock, Texas, in Williamson County. Williamson County is the northern anchor of the Austin metro, encompassing Round Rock, Georgetown, Cedar Park, and Leander, communities that have experienced some of the fastest residential growth in the nation over the past decade. The county's western edge retains significant ranch and acreage character as the Hill Country transitions to the urban core.
The San Gabriel River flows through Georgetown and the northern reaches of the county. The terrain transitions from the limestone hills of the western county to the Blackland Prairie in the east. Stillhouse Hollow Lake on the Lampasas River sits on the Williamson-Bell county boundary, offering recreation within easy reach of the northern suburbs.
Round Rock had an estimated population of 124,288 as of 2023. The 78664 zip code has a median household income of $85,919, a median home value of $317,400, and a median age of 34.8. The average household size is 2.65 people.
Major employers include Dell Technologies (headquartered in Round Rock), Amazon, healthcare systems, and a massive retail and service sector supporting one of Texas's most affluent suburban populations. Georgetown consistently ranks among the fastest-growing cities in America, and the county's western acreage properties attract buyers seeking rural character with urban access.
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 Serhant Texas, LLC.