Key West in Monroe County, Florida — The American South (South Atlantic)
Key West Custom House
The Island's Architectural Crown Jewel
The United States Federal Court House and judges' chambers occupied the second floor of this building and was the location for the U.S. Naval Court of Inquiry into the sinking of the battleship USS Maine in 1898.
When the Custom House building was completed in 1891, it was the center of federal activity on the bustling island. All goods entering or leaving the port were taxed by the Customs Office on the first floor. The island's Post Office was across the hall.
Key West's Custom House
The towering brick Custom House with its steeply angled roof and rounded archways was a sight to behold for weary sea travelers arriving into Key West's port. Architecturally, the design of the Custom House followed a standard federal building pattern. Government architects based their model on the work of Henry Hobson Richardson. The edifice was designed with an arched porch colonnade and windows, a grand entrance, brownstone columns, and unique terra cotta detailing, matching the Richardsonian style of the era, mainly in federal buildings.
Despite the charming aesthetics of the building, there were several design flaws that did not function well with Key West's tropical climate, nor the intended use of the building. Twelve fireplaces were included in the original scheme, and there was no provision made for restrooms inside the building.
What is Richardsonian Romanesque Architecture?
Richardsonian Romanesque architecture is a homegrown, modern American style that was popularized by Henry Hobson Richardson from 1880 to 1900. It is a revival style based on French and Spanish Romanesque patterns of the 11th century and is characterized by massive stone walls and dramatic semicircular arches, and an enthusiasm for interior space. His revival design won him a national reputation, putting his services in high demand.
Who was Henry Hobson Richardson?
Henry Hobson Richardson was a highly influential architect in the late 19th century, who created a style that became known as Richardsonian Romanesque.
Born in Louisiana, Richardson studied at Tulane and Harvard Universities. His interest in civil engineering shifted to architecture, and he continued his studies at the Ecole des Beaux-Arts in Paris.
Richardson designed houses, libraries, railroad stations, educational buildings, and commercial and civic structures. He favored horizontal lines, simple silhouettes, and uniform, large-scale details. So impressive was his style that the federal government chose to incorporate it in the design of several buildings after Richardson's death, including the Key West Custom House.
Topics and series. This historical marker is listed in this topic list: Notable Buildings. In addition, it is included in the Lighthouses series list. A significant historical year for this entry is 1898.
Location. 24° 33.49′ N, 81° 48.414′ W. Marker is in Key West, Florida, in Monroe County. It is at the intersection of Front Street and Greene Street, on the left when traveling north on Front Street. The marker is located along the southern entrance to the Custom House Building. Touch for map. Marker is at or near this postal address: 281 Front St, Key West FL 33040, United States of America. Touch for directions.
Regionally, this marker is on the Florida Keys. It is also in the American South and on the Gulf Coast. Globally, it is in the North Atlantic Region, North America, a Gulf of Mexico state, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain, the territory of the Mississippian Culture, one of the Confederate States of America, and the Antebellum South.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Custom House (here, next to this marker); Key West's Working Waterfront (a few steps from this marker); Sunken Treasure (within
shouting distance of this marker); Anchors (1622) (within shouting distance of this marker); Clinton Square (within shouting distance of this marker); Navy Club of Key West Monument (within shouting distance of this marker); Naval Depot and Storehouse-Building One-U.S. Coast Guard Headquarters (within shouting distance of this marker); Mallory Homesite (within shouting distance of this marker). Touch for a list and map of all markers in Key West.
Credits. This page was last revised on February 7, 2026. It was originally submitted on February 6, 2026, by James Hulse of Medina, Texas. This page has been viewed 66 times since then. Photos: 1, 2, 3, 4. submitted on February 7, 2026, by James Hulse of Medina, Texas.



