Welcome to this stunning Mercer Island home offering a total of 2,950 sq ft, including a beautifully designed 4-bedroom, 2.25-bath main residence and a 610 sq ft detached ADU-perfect for rental income, guests, or multi-generational living. Inside the main home, hardwood floors and expansive windows create bright, inviting living spaces. The modern kitchen features natural-toned cabinetry, stainless steel appliances, recessed lighting, and a large island with sink and seating-ideal for both everyday living and entertaining. A dual-sided fireplace adds warmth and character, while a versatile den, mudroom, A/C, and a well-appointed laundry room with utility sink enhance functionality. The detached 2-car garage includes the fully equipped ADU, complete with a kitchenette, washer and dryer, Murphy bed, and a ¾ bath-offering incredible flexibility and value. Step outside to a fully fenced, level backyard designed for relaxation and entertaining, featuring a saltwater pool and a covered deck with outdoor fan for year-round enjoyment. Ideally located close to parks and highly rated schools, this exceptional property combines comfort, versatility, and an unbeatable Mercer Island lifestyle-don't miss this rare opportunity!