St. George Coast Guard Station, or the Staten Island Coast Guard Station, located adjacent to the Staten Island Ferry St. George Terminal, is a complex of 22 historic buildings and was best known for the invention and manufacturing of lighthouse equipment. The Office Building and U.S. Light-House Depot Complex, designed by Alfred B. Mullet and completed in 1865, are listed on the National Register of Historic Places, and comprise an official New York City Landmark.

Alfred Bult Mullett was a British-American architect who served from 1866 to 1874 as Supervising Architect, head of the agency of the United States Treasury Department that designed federal government buildings. His work followed trends in Victorian style, evolving from the Greek Revival to Second Empire to Richardsonian Romanesque.