Welcome to the Williams-Butler Mansion, a singular piece of Buffalo's rich history now offered for sale. Designed by world renowned architect Stanford White of the prestigious firm McKim, Mead & White, this iconic residence commands the corner of Delaware Avenue and North Street. The remarkable 40-room estate spans 3.28 park-like acres at 672 Delaware Avenue, anchoring Buffalo's famed “Millionaires' Row.” Inside, the mansion showcases extraordinary original woodwork, countless marble fireplaces, and exceptional craftsmanship throughout-details that truly set this historic property apart. The possibilities are limitless: restore the mansion to a grand single-family residence, reimagine it as a boutique hotel, develop executive office space, or create an elegant event venue utilizing the two commercial-grade kitchens located in the basement. Together, the main house and the historic carriage house provide over 29,000+ square feet of living and functional space. Ample private parking with 53 surface parking spaces, multiple courtyards, and expansive grounds further enhance the property's presence and potential. Here is your chance to own a monumental part of Buffalo's history. Offers will be reviewed as they come in. N-2R Zoning. Sewer fee- $4,830.