Located outside Loop 410 in Castle Hills, 104 Roundup is a luxurious single-story, all-level (no steps) retreat nestled on a very private tree studded 0.69 Acre lot. Convenient to Loop 410, the airport, 281, IH10, and Wurzbach Parkway, this home is ideal for those on the go, business professionals who work from home, families with lots of kiddos, or families who are combining households with their parents. Consisting of two separate dwellings, a 15x30 pool that is perfect for watersports, garage parking for six vehicles, and ample additional off-street parking, this home is ideal for lots of different living situations. The main home, at 2900 sq ft, consists of 4 bedrooms and three full bathrooms, a 4-car attached garage, a large dining room, family room, office, a kitchen with acres of granite, and lots of natural light. The owner's retreat boasts a large sitting area, a huge closet, and a very nice walk-in shower. TONS of privacy as well since the secondary bedrooms are on the opposite side of the home. The covered patio just off the family room is very large and perfect for entertaining. The swimming pool is in awesome shape and is waiting for somebody to set it up for some water volleyball matches or water aerobics. At the very back left corner of the lot, you will be able to try your hand at gardening, as the area is perfect for growing tomatoes or whatever else suits your fancy. If you're looking for a place for aging parents to live with you, at the other back corner of the lot is a 748 sq ft casita which is fully equipped with a bedroom, living room, kitchen, and bath. This detached dwelling boasts its own two-car garage. This home is perfect for many different living situations and is fully move-in ready for its next owners.