Townhouse Living in the Heart of Greenwich - Private Rear Lawn + 3,376 Sq Ft of Interior Space. A rare opportunity to own a beautifully scaled 3-bedroom, 3.5-bath townhome in one of downtown Greenwich's most charming and private enclaves. Set within a boutique six-residence association, 45 William Street #B is the largest residence in the community and the only one with its own private rear lawn - a 3,476-square-foot outdoor space that is exceptionally rare in central Greenwich. Inside, the home offers 3,376 square feet across three levels, blending the comfort and proportions of a townhouse with the ease of in-town living. The main level features gracious entertaining spaces, abundant natural light, a large eat-in kitchen, and seamless access to the rear lawn, creating an effortless indoor-outdoor flow for outdoor dining, entertaining, gardening, or simply enjoying private green space at home.
Generous room proportions, three spacious bedrooms, three full baths plus a powder room, flexible living areas, and excellent separation of space provide comfort for everyday living, guests, and work-from-home needs. A private garage and additional deeded parking further enhance the home's convenience and livability.
Ideally located just moments from Greenwich Avenue, shopping, dining, Metro-North, parks, and Greenwich Library, 45 William Street #B offers a truly uncommon combination of space, privacy, outdoor living, and close-to-town convenience.
45 William Street #B, Greenwich, CT 06830, is a 3 bedroom, 3 bathroom, 3376 sqft. Condominium built in 2005.
This property is currently available for sale and was listed on Greenwich Multiple Listing Service, Inc. on 5-25-2026.
The MLS# for this Condominium is MLS# 125073.
Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
Copyright ©2026 Greenwich Multiple Listing Service, Inc.