Introducing 303 Humboldt Street, a masterfully transformed single-family townhouse in the heart of Williamsburg. Every inch of this home has been meticulously renovated in collaboration with the Williamsburg-based, Architectural Digest-featured designer behind the renowned Urban Cowboy Hotels. Designed with material intentionality and thoughtfulness, 303 Humboldt Street embraces Williamsburg’s industrial loft past – incorporating details like exposed ceiling beams and reclaimed wood sourced from a local lumber yard – while offering the privacy and exclusivity of Brooklyn townhouse living. This 4-bedroom, 3.5-bathroom home, complete with an entertainment room, laundry room, finished basement, and a landscaped backyard featuring a cedar sauna and cold plunge, was built to impress. The design-forward main level features a custom floating staircase, 9+ foot exposed wood beamed ceilings, a powder room with a hand-crafted Calacatta Viola marble sink, and new 8-inch white oak floors throughout. The living room is anchored by a decorative vintage cast-iron fireplace with a custom reclaimed wood mantel. The open-plan layout creates a seamless flow between living and dining, with a built-in marble-topped coffee bar and space for an 8 person dining table. The chef’s kitchen is an entertainer’s dream, boasting a 10+ foot Fior de Pesco waterfall marble island with counter seating and built-in storage, abundant counter space, a built-out pantry, and top-of-the-line appliances, including a 48” range and vented hood. Floor-to-ceiling accordion glass doors off the kitchen open onto a wraparound deck overlooking the backyard for the ultimate indoor-outdoor living experience. Replenish and unwind year-round in your very own spa-inspired retreat – a landscaped backyard with a cedar cold plunge and sauna designed with Williamsburg’s wellness-focused community in mind. Upstairs, the king sized primary suite easily fits an additional seating area and is flooded with natural light through three oversized, Cityproof sound-treated windows. The walk-in closet leads to a spa-like ensuite with radiant heated floors, a walk-in shower with a separate soaking tub, and a floating double vanity with an LED smart mirror. The second bedroom, thoughtfully positioned at the other end of the second level for privacy, features a built-out closet and full ensuite bath. All full bathrooms are outfitted with radiant heated floors and the laundry room includes a washer, vented dryer, countertop space, and a vanity for storage. The garden level offers two additional bedrooms and a bonus living area, ideal for movie nights or a children's playroom. 303 Humboldt Street delivers the ease of modern luxury living while maintaining a warmth rarely seen in new construction today. All windows throughout are Cityproof sound-treated, creating a serene escape from city life and all building infrastructure has been fully updated, including plumbing and sewage lines, mechanicals, and a full electrical upgrade – ensuring peace of mind for years to come. The house is perfectly situated on a quiet, townhouse-lined block surrounded by some of Williamsburg’s best dining and shopping, and is conveniently located only a short walk from the L train at Grand Street for seamless commuting into Manhattan.