18310 W ONYX Court Inviting 5 Bedroom, 3.5 Bath, Single-Level, MultiGenerational Semi-Custom Home with a Pool in the highly desired Cortessa community! Tucked into a quiet cul-de-sac with wonderful neighbors, this home is ideal for families with adult children, parents, or anyone who wants comfortable living spaces for everyone. A stacked stone exterior and Gated entry courtyard welcomes you and offers two separate entry doors, including a private entrance to the attached Guest Wing-perfect for added independence while staying close to loved ones. The Gourmet Kitchen is the heart of the home with a granite island, breakfast bar, gas cooktop, two wall ovens and rich Cinnamon Spice toned staggered height cabinetry. Enjoy your morning coffee in the cozy rotunda breakfast room with a lovely courtyard view. Elegantly appointed throughout, with ten foot high ceilings, high baseboards, custom crown moulding, coffered ceilings, curved walls, arches and architectural niches. Bath 4 is a Powder room off the main entry for your special guests. Bedroom 5 works perfectly as an office or flex room with no closet, it connects directly to the Guest Suite which is Bedroom 4. The Guest Suite includes its own private bath, a wonderful setup for multi-generational living or pampered Guests. The luxurious Main Suite features a large walk-in closet, double sink vanities, a mirrored makeup vanity, a deep soaking tub, a walk-in shower, and a private exit to the covered patio and sparkling play pool. This home is also energy-smart, with 3 AC units replaced in 2022, radiant barrier in the attic, a tankless water heater, and gas heat. The Central Vac is a wonderful feature for convenience! Garage has convenient overhead Storage Racks. The entire exterior has been freshly painted, and an RV gate on the side is ready for trailers, toys, or extra storage. Homes like this don't come up often in Cortessaespecially with a full guest wing and a beautiful backyard oasis. This home is the perfect fit for your multi-generational lifestyle!