Rare single-story 4 bedroom, 3 FULL bath Ashton Woods home in Avalon, McKinney, offering exceptional flexibility, an oversized 3-car garage and a 420 sq ft fully enclosed bonus room you will not find in most one-story homes. Meticulously maintained by its original owner, this pristine property pairs a highly sought-after floor plan with thoughtful updates and spaces designed to adapt to the way you live. The light-filled bonus room is a true standout, featuring walls of windows and a large closet with endless possibilities as a game room, second living area, home gym, studio, hobby room, playroom or private guest retreat. A dedicated home office with French doors provides another versatile space for working from home. The rare 3-car garage includes a 5-foot extension, epoxy flooring and a taller garage door designed to accommodate a large truck or SUV. Double garage is 25' long x 20' wide. Single garage is 10' x 19'. Garage doors are a very tall 9 feet! Inside, two of the three FULL bathrooms have been beautifully renovated and feature walk-in showers. The spacious kitchen opens to the breakfast area and family room, while multiple living and dining spaces make everyday living and entertaining easy. Step outside to a private backyard surrounded by an 8-foot board-on-board capped fence. Enjoy an extended covered patio, sprinkler system, raised landscaping beds perfect for gardening and a large locking storage building with shelving. Recent 2026 updates include a new water heater and garbage disposal. Conveniently located on a quite little side street near McGowen Elementary and the Avalon community pool and playground, with easy access to McKinney Ranch Parkway and SH 121. This beautifully cared-for McKinney one-story home delivers the space, storage, privacy and versatility buyers are searching for.