Welcome to 131 Mayfield Drive. Poised on a premium 60 x 131ft lot, this designer custom-built residence seamlessly blends architectural sophistication with everyday comfort, offering over 5,200 square feet of meticulously designed living space across all levels. A marble-clad foyer opens into formal living and dining spaces framed by soaring floor-to-ceiling windows and a grand gas fireplace, flowing into a custom chef's kitchen anchored by a marble waterfall island and premium Sub-Zero, Wolf, and Miele appliances. The upper level features four broad bedrooms and three beautifully appointed baths, including a serene primary retreat complete with a boutique walk-in closet and a spa-inspired ensuite, alongside a convenient second-floor laundry room. Below, the finished walk-up lower level is dedicated to leisure and wellness, hosting a private home theatre, gym, dedicated office, guest suite, and a private spa with both a sauna and steam room. Finished throughout with heated hardwood floors and refined stone. Close proximity to top-rated schools and the Oakville Golf Club.