Seagate, Mediterranean Revival mansion in Manatee County, US.

Seagate is a two-and-a-half-story, 11,000-square-foot Mediterranean Revival house on Sarasota Bay in Manatee County, Florida. Architect George Albree Freeman Jr. designed it with Tampa architect Ivo A. de Minicis, and contractor Paul W. Bergmann built the cast-stone-and-stucco home in 135 days in 1929. It stands on 16.5 acres of the former 45-acre estate, at the end of Seagate Drive.

The property was built in 1929, a time when wealthy Florida residents were adopting European architectural styles for their homes. Its listing on the National Register of Historic Places recognizes this building as an important example of that architectural period.

The mansion shows what wealthy Florida residents valued in the 1920s, choosing Mediterranean-influenced designs for their coastal homes. This architectural choice became a fashionable statement for the area's elite property owners at that time.

The property is located in Manatee County and holds official historical recognition, meaning its architectural heritage is protected through preservation records. Visitors should know that access may vary depending on the property's current status and local guidelines.

Archaeological studies in the late 1980s and early 1990s suggest the Calusa inhabited this bayfront area in the archaic period. Former resident Allan Horton described a circular raised earthen platform, 32 feet across and 18 to 24 inches high, on the grounds, possibly an ancient ceremonial structure.