One of New York City’s fiercest office-to-resi converters is setting its sights on Water Street. Vanbarton Group is in contract to purchase the office building at 77 Water Street for $95 million, Bloomberg reported. The seller is a group of investors, including Sage. The deal is expected to close by the end of the year and would break down to roughly $175 per square foot for the 542,000-square-foot property.