Seaside, planned resort community in northwestern Florida, located on the coast of the Gulf of Mexico in Walton County. The beachside community was founded in 1981 by Florida native Robert Davis. Miami-based architects Andres Duany and Elizabeth Plater-Zyberk incorporated pastel-colored Victorian cottages, picket fences, and narrow streets in order to evoke a sense of community common to small towns of the past. Seaside has received national attention for its innovative design. Area, 30 hectares (80 acres).