A major construction of Tandy & Foster was St. Philip's Episcopal Church in New York City. The church was carefully designed in Neo-Gothic fashion with great attention to detail. The structure was built primarily out of stone and brick, unlike the original building, which was made of wood. After the original suffered fire damage, Tandy & Foster were contracted to build the new church at its current location. St. Philip's Episcopal Church is still open as a place of worship, and has housed policeman as a barrack during riot times over the past 100 years.
Not only was Vertner Tandy a brilliant architect and trailblazer for African Americans in the workforce, but he was also the first African American to pass the U.S. military commissioning exam. Tandy was commissioned First Lieutenant in the 15th Infantry of the New York State National Guard. He also founded Alpha Phi Alpha Fraternity, and served as its first treasurer.