Welcome to 1001 Halcyon Avenue, a stunning 5-bedroom, 5 full and 2 half-bath home that blends modern elegance with timeless design in the heart of 12 South-one of Nashville's most sought-after neighborhoods. The property includes a 4-bedroom, 4 full and 1 half-bath main residence plus a detached accessory dwelling unit (DADU- additional 790 finished sqft not included in total sqft) with 1 bedroom, 1 full and 1 half bath, ideal for guests, a private office, multigenerational living, or rental income. Inside, elevated designer finishes, abundant natural light, and an open-concept floor plan create the perfect setting for everyday living and entertaining. The chef's kitchen features high-end Fisher Paykel appliances, custom cabinetry, and an oversized island that flows seamlessly into the living and dining areas anchored by an oversize marble statement fireplace. The main-level primary suite offers a spa-inspired bath with heated floors, a freestanding soaking tub, and a spacious walk-in closet. Upstairs, you'll find a large bonus room, second laundry room, generous storage, and three ensuite bedrooms, each with walk-in closets. Additional highlights include a dedicated home office, butler's pantry, and designer wet bar complete with a wine refrigerator and ice maker. Enjoy exceptional outdoor living with a covered front porch, covered rear porch with an outdoor kitchen, heated gunite pool with an automated cover, beautifully landscaped backyard, turfed side yard, and a private stone fire pit just outside the primary suite. The DADU also includes a convenient first-floor half bath for pool guests. Located just steps from 12 South's acclaimed restaurants, boutiques, parks, and coffee shops, this exceptional property offers luxury, flexibility, and unbeatable walkability in one of Nashville's premier neighborhoods.