Ribadesella's old town (Villa Vieja) has many worth-seeing buildings from the time between the late 16th and the early 18th century. At that time the town was home to Asturia's most important port and the houses belonged to local traders and merchants.
The buildings are usually three to four storeys high, painted in light pastel colours and often have a family coat of arms on the front facade.
A typical example is the 18th century Prieto Family Palace (Palacio de los Prieto), which nowadays is the local post office. It can be found at the street Calle Manuel Fernandez Juncos 21.
Along the beach promenade in the modern district of Arenal de Santa Marina many eclectic style villas dating from the end of the 19th century or beginning of the 20th century can be seen.
The buildings are also known as "Indiano Houses" as they were built by locals who emigrated to America for work and on their return constructed these villas.
One of the best known buildings is the modernist Villa Rosario, which is nowadays a hotel and restaurant. It's history dates back to the early 20th century, when it was built by a local person who worked as a tobacco warehouseman in Cuba.
Another famous building is the Green Chalet, which was finished in 1916 after designs of the Spanish architect Enrique Pfitz y Lopez. The name of the villa was derived from the green-coloured glassed ceramics on the façade.