Between 1917- 1922 the second Marquis of Alella, Ferran Fabra i Puig (1866-1944), commissioned building the project to the architect Enric Sagnier i Villavecchia (1858-1931) entre 1917-1922. The commission consisted of building several houses: the main house was for himself, the tower on calle de Avenir for his daughter and two more houses on calle de Marià Cubí for his sons. These houses were later sold by their descendants.
In 1945 the Marquis’ granddaughters sold the estate to the brothers Julio and Álvaro Muñoz Ramonet. The estate, bequeathed by Julio Muñoz Ramonet, is one of the few to remain virtually untouched since the beginning of the twentieth century, when the area consisted of family houses with their own garden. There are two buildings: the main house and the tower with entry from calle de Avenir.
The house has a surface area of 2,100 m2, divided onto four floors with two towers projecting from the roof. The main facade is the most ornate, with openings framed by scroll-shaped corbels that are carved in stone, and the towers are finished with rails and cornices reminiscent of the Plateresque tradition of Castilian architecture. The Marquis's shield, surrounded by scrolls and acanthus leaves, is found on the first-floor central balcony, above a false window. The manner in which the facade and tower are completed gives a classical style to the finished look.
The house’s interior is structured around a hall covered by a skylight that surrounds the rooms. These are for example, the gala dining room embellished with paintings inspired by Homer's Odyssey, an art work by Ramon Stolz Viciano (1903-1958). Also, the Goyaesque room, decorated with paintings depicting majas (women from Madrid wearing traditional ‘maja’ dress), dames and chulapos (men from Madrid wearing traditional ‘chulapo’ garments), by the painter Ernest Santasusagna i Santacreu (1900-1964). There are also a ballroom, a music room and many other rooms.
A majestic staircase is found in the foyer, originally of Noucentista style, that leads to the first floor, where the family's private rooms are located, which connect to a large veranda that surrounds the central space of the ground floor, where a small chapel is also found.