In 1905, the Lleó Morera family commissioned architect Domènech i Montaner to undertake a complete renovation of the house, which has stood on Paseo de Gracia since 1864.
In 1906, the building won first prize in the annual Artistic Buildings Competition organised by the City Council.
Restoration work was carried out in 1992 to restore the architectural elements of the façade.
The house has formed part of the European Route of Modernism since 2007.
The building is for private use so cannot be visited, but the original period furniture from the family dining room is on display in the National Art Museum of Catalonia (MNAC).
The block in the Eixample district where Batlló House, Amatller House, and Lleó Morera House are located became popularly known as the "Illa of discord" (Block of Discord) due to the disparity of architectural elements among the buildings there, all dating from the early 20th century. In all three cases, restoration work has been carried out on existing buildings.
Address: Paseo de Gracia, 35
Buses: 7, 16, 17, 22, 24, 28
Metro: Passeig de Gracia (L2, L3, and L4)