The centre of the Osa Valley, next to the River Villa, which is hidden from the view of passers-by, is of more recent construction, from the 15th to the 18th century. This area is made up of wider streets, adapted to the flat area, and which reveal the economic power of the landowners, merchants and industrialists of the time.
The houses are of a stately character and are normally built around a central courtyard, with facades in neoclassical and regionalist styles. They are centered around the most representative areas of the old town, the best preserved being those lining the streets of Padre Félix, Blas Infante, Llano del Sol, Plaza de España, Mesones, Carnicería, Santo Cristo, Eduardo Dato, El Peso, Plaza de Santa Ana and Plaza de Carretería. This part of the urban fabric contains the facilities of industries for the processing of natural resources, basically those related to wine, agriculture and livestock, wood and meat, most notably anisette factories and family wineries that preserve the original presses.