Georgetown, TX 78628 (Williamson County)
About this property
Welcome to this captivating white limestone estate, offering the perfect blend of peaceful country living and city convenience with freedom and no HOA. Located in a highly coveted Georgetown neighborhood, this home boasts gorgeous curb appeal, meticulous landscaping, and mature trees. Step up to a large, stunning front porch, leading to a beautiful front door, designed with elegant glass panels that flood the foyer with natural light, highlighting beautiful arched entryways and two stunning art nooks. Brand-new wood laminate floors (2025) guide you through an open-concept floor plan that seamlessly connects the kitchen, living room, dining room, and office, complete with custom built-ins. In the main living area, a white limestone fireplace serves as the centerpiece, flanked by a custom built-in entertainment center large enough to hold a 90-inch flat-screen television. The gourmet kitchen is a chef's dream, with striking black granite countertops, white cabinets, a walk-in pantry, and built-in microwave and oven. This beautiful home has many upgrades, including a new roof (January 2024), an attic-located HVAC system (2015) rebuilt in 2025, and a septic tank pumped in March 2026. Extra-large master suite that includes its own private sitting area, with a spa-like master bathroom featuring separate his-and-hers vanities, two walk-in closets and a large garden tub with separate shower. The secondary bedrooms are connected by a Jack-and-Jill bathroom. The backyard is an entertainer’s dream, showcasing a whimsical appeal secured by elegant wrought iron fencing, an oversized back patio living area, a built-in outdoor kitchen and fire pit. This remarkable property also includes a bonus detached studio (23X11) that is fully climate-controlled with electricity. For extra storage, a high-quality utility Tuff Shed (16X12) was added in 2024. Parking is effortless with a side-entrance two-car garage and an extra-long driveway with a convenient front turnaround area.
Property details
Location
About the Area
309 Cassidy Dr is located in Georgetown, 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.
Georgetown had an estimated population of 78,803 as of 2023. The 78628 zip code has a median household income of $117,198, a median home value of $467,700, and a median age of 41.5. The average household size is 2.62 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 All Streets Realty, LLC.