Liberty Hill, TX 78642 (Williamson County)
About this property
505 Kasen Circle is located in the gated Serenity Springs community in Liberty Hill. Set on 2.5 acres in a quiet cul-de-sac, this modern hill country organic home offers 4032 square feet of thoughtful design, a total of four garage spaces between the main home and casita, and exceptional features throughout. The main residence includes 4 bedrooms, each with its own en-suite bathroom, along with a dedicated office and a separate powder room for guests. The primary suite features a walk-in shower, vessel tub, sauna, and private access to a safe room with an entrance to the underground bunker through the primary closet. The kitchen is equipped with SKS luxury appliances, including a 48-inch gas range top, oven, and 48-inch built-in refrigerator. One of the most notable features is the working pantry, which includes an induction range, ice machine, additional sink, drawer refrigerators, and an Elkay water dispenser. A skylight fills this space with natural light while keeping it discreetly tucked away. The dining room adds convenience with a built-in wine fridge. Outdoor living is enhanced by an outdoor kitchen with a gas grill and refrigerator, along with an in-ground pool and spa. A separate 430-square-foot casita offers excellent flexibility for guests or multigenerational living. It includes a full bathroom, kitchenette, stacked washer and dryer, and its own two-car garage. Architectural details such as 15-foot ceilings in the living and kitchen areas, wood beams, interior stone accents, and wide-plank wood flooring complete the home’s warm, elevated style. This property combines privacy, luxury, and functionality in one of Liberty Hill’s most desirable communities. Main home is 3602 sq/ft and Casita is 430 sq/ft. Panoramic hill country views can be seen from a multitude of locations throughout the property.
Property details
Location
About the Area
505 Kasen Cir is located in Liberty Hill, 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.
Liberty Hill had an estimated population of 6,706 as of 2023. The 78642 zip code has a median household income of $128,086, a median home value of $486,800, and a median age of 36.8. The average household size is 3.02 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 Life Around Austin Realty, LLC.