Dade Lodge #14 was built by esteemed Miami architect, Henry Hohauser for a local order of Masons. The architectural style of the building is Streamline Moderne. The new look embraced simple lines and aerodynamic curves in reaction to Victorian building ornamentation that was the predominant building style for decades. The use of concrete construction and large expanses of glass stood in stark contrast to the wooden structures in what is now the Historic District
Building # 1 is the oldest brick structure in Key West built by the U.S. Navy as a Coal Depot and Storehouse. It coordinated refueling steamships and was a vital source of coal from 1856 â€“ 1900. During the Civil War, the Unionâ€™s West Indies Blockade Squadron was headquartered here. The blockade shortened the war and saved many lives on both sides of the conflict. In 1932 the 7th Lighthouse District occupied the structure. In 1939, the building became the U.S .Coast Guard Headquarters.