Along the Grand Canal, these elements are well preserved in Ca' Farsetti, Ca' Loredan (both municipal seats) and Ca' da Mosto, all dating back to the 12th or 13th century. During this period Rialto had an intense building development, determining the conformation of the Canal and surrounding areas. As a matter of fact, in Venice building materials are precious and foundations are usually kept: in the subsequent restorations, existing elements will be used again, mixing the Venetian-Byzantine and the new styles (Ca' Sagredo, Palazzo Bembo). Polychromy, three-partitioned façades, loggias, diffuse openings, and rooms disposition formed a particular architectural taste that continued in the future.