This is the main room, divided into three spaces by columns of pink marble with floral capitals bearing allegories (on agriculture, trade and the textile industry).
The east and south walls are decorated with six panels of mural paintings with symbolist landscapes by Pere Viver i Aymerich (1873 - 1917). Part of the furnishing is original (sofas, mirror, chairs, auxiliary benches and tables).
The glass gallery, at the rear of the house, is a light-filled room of a metallic structure supporting a ceiling of stained glass created by the Maumejéan company. A ceramic mosaic runs along the base.
The courtyard is closed on its north side by a large wrought-iron grille with plant motifs that separates the house from the garden.
A renovated toilet stands on the west side of the room. The door with its stained glass is the original one. The main staircase is made of mahogany with brass fittings.
The stairwell has four mural paintings by Joaquim Vancells i Vieta (1866 - 1942). The largest picture shows the scene in which the family hero, Joaquim de Sagrera, was captured during the War of Independence: Les altures de Rubió. The other paintings depict the manor-farmhouses which were property of the Alegre family: Ca n’Ametller d’Abrera, Mas Valls and Can Palet d’Ullastrell.