Your search satisfies here — 4201 Arques Avenue: https://show.Tours/4201arquesave Located in the highly desirable Highlands at Mayfield Ranch, this 2021 Sitterle Heritage Premier Series home sits on a premium corner lot and features a rare private casita — a layout seldom available in this community. This beautifully upgraded 4-bedroom, 3-bath residence is ideal for those seeking single-story luxury with flexible living. Just off the front entrance, beyond a charming rose garden and courtyard, the detached casita offers its own entrance, full bath, and walk-in closet — perfect for guests, extended family, a home office, or rental income. The home welcomes you with lush, mature landscaping maintained by the HOA front and back, setting a serene, polished tone. Inside, over $90K in documented owner upgrades shine throughout: chef's kitchen with modern appliances, granite countertops, breakfast bar, elite water filtration, wine refrigerator, and included washer/dryer. The main living area is light-filled with soaring ceilings, oversized windows with motorized blinds, maple hardwood floors, and a dramatic 12-foot marble fireplace. Elegant French doors open to a flexible room perfect for home office, formal dining, or optional bedroom. The primary suite is a true retreat with backyard views, spa-inspired Interceramic rainforest tile bath, and sunlit walk-in closet with skylight. Outside, enjoy a fully fenced private garden oasis. Minutes from Dell, Apple, Samsung, and Tesla. Easy access to Round Rock Premium Outlets, Old Settlers Park, and local trails. Zoned to top-rated Wolf Ranch Elementary, Tippit Middle, and East View High. Single-story casita homes here don't last. Schedule your private showing today.