Move right into this meticulously renovated triplex residence nestled within a landmarked Romanesque Revival townhouse on one of the Upper West Side's most coveted blocks. Offering the scale and privacy of townhouse living with the ease of a boutique, well-managed 7 unit cooperative, this exceptional home seamlessly blends historic character with modern luxury. Fully gut renovated in 2018, Residence 1/2 spans over 3,000 interior square feet with approximately 300 square feet of private outdoor space. Designed for today's lifestyle, the home features 5 bedrooms, 3 full bathrooms, and a powder room, all enhanced by sophisticated finishes, smart home technology, and beautifully curated living and entertaining spaces. The dramatic living room is anchored by soaring 13-foot ceilings, oversized windows, custom ironwork, and a wood-burning fireplace. Wide-plank white oak flooring runs throughout, while state-of-the-art Mitsubishi climate control, smart home integration, and upgraded sound-insulated windows provide exceptional comfort and convenience. Designed for both entertaining and everyday living, the expansive chef's kitchen features custom Scavolini cabinetry, premium appliances including Miele, Monogram, Liebherr, and Samsung, and a striking porcelain-clad island with integrated sink. Adjacent dining and living spaces flow effortlessly to the beautifully landscaped private patio complete with outdoor kitchen, grill, refrigeration, and custom Brazilian Ipe wood detailing. The flexible layout offers generously proportioned bedrooms with custom-designed closets throughout, abundant storage, a family/media room, home gym potential, and two functioning wood-burning fireplaces. The serene primary suite features triple-pane windows for near-perfect sound insulation, a spacious walk-in closet, and a spa-like bath. In addition to extensive custom storage in each room, the home also includes a dedicated storage room and basement storage. Originally constructed in 1889-1890 by noted architect Edward Angell, 344 West End Avenue is an intimate seven-unit cooperative offering the privacy and scale of townhouse living with the benefits of cooperative ownership and professional management. Residents enjoy responsive management, building staff support, private storage, and a pet-friendly environment, all just moments from Riverside Park, and the best shopping and dining of the Upper West Side. A rare opportunity to own a meticulously renovated historic townhouse residence with modern infrastructure, exceptional outdoor space, and true move-in-ready living.