Completed in 2022 and enhanced with over $300,000 in owner upgrades and a low tax rate of 1.67%, 15103 Nightingale Lane is a stunning contemporary retreat where modern luxury meets resort-style living. Tucked near the end of a quiet dead-end street in the coveted Canyons of Cardinal Hills, this nearly half-acre homesite is enveloped by lush landscaping, creating a rare sense of privacy and seclusion-all within the highly acclaimed Lake Travis ISD. Designed for exceptional indoor-outdoor living, the backyard is an entertainer's dream featuring a recently completed pool, stunning Greek-inspired outdoor kitchen, expansive patios, & multiple spaces to relax and unwind. The epoxy-finished garage has been transformed into a private gym & sauna, while the detached 200SF Pod, configured as two private offices, offers incredible flexibility for work, guests, or creative space. Soaring ceilings, expansive windows, 7-inch engineered European white oak flooring, designer lighting, quartz countertops, & an open-concept floor plan create a sophisticated yet inviting atmosphere. The chef's kitchen showcases an oversized quartz waterfall island, custom cabinetry, walk-in pantry, abundant storage, & a spacious dining area overlooking the backyard. A striking heat-radiating electric fireplace anchors the living room, while a custom pet station, laundry room, & powder bath complete the main level. The main-level primary suite offers backyard views, private outdoor access, dual vanities, a soaking tub, oversized two-person shower, & a split walk-in closet. Upstairs features three additional bedrooms, two full baths, & a secondary living area with custom built-ins. Quality construction includes foam roof insulation, Zip System sheathing, 17-SEER HVAC, EV charger, water softener & whole-house filtration hookups, Cat 6 wiring, audio/security pre-wire, & rain-sensor irrigation. Minutes from Lake Travis, shopping, dining, H-E-B, & the Hill Country Galleria. Low $240 annual HOA.