The Property File Collection houses over 3,000 property files that document vital information about the built environment of Palm Beach. The collection is arranged by address and contains brochures, photographs, newspaper articles, historic designaton reports, and other relevant property information. All files can be scanned upon request, although a majority are already digitized.

Photographs for properties within files include photographs dated c.1990 taken by Sotheby's for real estate listings, and photographs dated 1982 taken by Gene Pandula for the Landmarks Preservation Commission.