Residence 2B at 669 Saint Mark's Avenue is a thoughtfully designed three-bedroom, two-and-a-half-bath home that pairs cutting-edge design with elevated everyday living in the heart of Crown Heights. Built with Passive House principles, the residence emphasizes exceptional energy efficiency, comfort, and modern sustainability without compromising on style. The expansive open-concept living and dining area is framed by triple-pane tilt-and-turn windows that capture beautiful tree-top views and flood the home with natural light, while seamlessly extending onto a private 119-square-foot terrace. At the center of the home, the striking fully windowed kitchen is a true design statement, featuring quartz and wood block countertops, glass finishes, a breakfast bar, and premium appliances including an Elica NikolaTesla Switch induction cooktop, Liebherr refrigerator, and Miele convection oven, all artfully elevated on Lago's signature glass legs for a dramatic floating effect. The spacious primary suite offers a peaceful retreat, complete with generous closet space and a beautifully appointed en-suite bath featuring Lago double vanities, tankless toilets, and a spa-like shower with rainfall and handheld fixtures in matte black finishes. Positioned privately on the opposite wing of the home, two additional queen-sized bedrooms provide flexibility for guests, family, or a home office and share a refined marble-clad hall bath. A chic powder room with Lago's floating sink and interactive mirror further reflects the home's distinctive design sensibility, while private basement storage adds convenience to this well-considered residence. Set in one of Brooklyn's most vibrant and evolving neighborhoods, Crown Heights offers an ideal blend of historic character and contemporary energy. Tree-lined blocks of classic brownstones meet an ever-growing collection of acclaimed restaurants, cafés, boutiques, and cultural destinations. Residents enjoy close proximity to Prospect Park, the Brooklyn Botanic Garden, the Brooklyn Museum, and excellent transportation options including the 2, 3, 4, 5, S, A, and C trains, offering seamless access throughout Brooklyn and Manhattan.