Gaudí did not build Casa Batlló. The building had stood since 1877, the work of Emili Sala Cortés, who had been one of his architecture teachers, and when the industrialist Josep Batlló bought it in 1903 the plan was to knock it down and start again. It was Gaudí who talked him out of it.
What you see on Passeig de Gràcia is therefore a renovation, carried out between 1904 and 1906 on a building almost thirty years older: the façade remade, the internal walls moved, the courtyard widened. Keeping that in mind changes the way you look at the house, because almost every invention is the answer to a problem Gaudí had inherited.
The ticket also needs choosing with care, because it comes in several tiers: not all of them include the terrace with the dragon’s back, and you have to go in within fifteen minutes of the time you picked.
Why are the windows in the inner courtyard small at the top and large at the bottom?
An 1877 house that was not supposed to survive
Josep Batlló i Casanovas was a textile industrialist with several factories in Barcelona, and the building he bought stood on the avenue where the city’s leading families had been building their homes since 1860, when Ildefons Cerdà’s plan for the city’s expansion was approved. Batlló gave Gaudí a free hand, and Gaudí used it not to demolish.
The work took two years. Gaudí remade the façade, rearranged the rooms, widened the light well and turned the interior into a total work of art, from the door handles to the ceilings.
Look at the house next door. In the same years, on the same stretch of the avenue, other architects were remaking the façades of the neighbouring buildings, competing for the prizes the City Council awarded to the best buildings, and the stretch became known as the Block of Discord: next to Casa Batlló is Casa Amatller by Josep Puig i Cadafalch, with its stepped façade, and on the same stretch are Casa Lleó Morera by Lluís Domènech i Montaner, Casa Mulleras by Enric Sagnier and Casa Josefina Bonet by Marcel·lí Coquillat. Domènech is the architect of the Palau de la Música Catalana.
The house left the Batlló family in the 1950s. Since the 1990s it has belonged to the Bernat family, who restored it and opened it to the public in 1995, with cultural visits from 2002. Today it receives a million visitors a year.
The façade: masks, bones and a scaly roof
From Passeig de Gràcia the façade seems to move. It is covered in stone, glass and broken ceramics, and the surface undulates so that the morning light makes it shimmer.
The balconies are shaped like masks: they are cast iron, made in a single piece and fixed at two points so that they project. On the ground floor, the main floor and the first floor the stone columns are slender and shaped like bones. At the top, the roof is made of large ceramic scales, like the back of an animal, and beside it stands a turret with a four-armed cross, each arm pointing to a point of the compass.
Where does the idea come from that the house tells the legend of Saint George?
The popular reading of the house grows out of these three elements: the roof is the dragon, the cross is the hilt of the sword of Saint George, patron saint of Catalonia, and the bone-shaped columns are the dragon’s victims. That is why in the city it is also called the house of bones or the dragon house.
The house’s website is careful to point out that this is an interpretation, and the reason is simple: Gaudí never explained the façade, and he directed its construction from the street, without detailed drawings, as he usually did. Salvador Dalí read it instead as a house built on the forms of the sea, with the waves of a calm day.
The main floor, where the family lived
From the shared ground-floor hall, through a large iron gate, you enter the Batlló family’s private hall, which is the first stop of the visit. The skylights are shaped like tortoise shells, the walls are curved, and the handrail of the wooden staircase climbs like the spine of a great animal.
On the main floor you find Batlló’s study, with a mushroom-shaped fireplace, and then the drawing room, whose centrepiece is the great window over Passeig de Gràcia: a gallery made for seeing and being seen. The doors are oak with inserts of coloured glass, and the ceiling ripples like the surface of the sea.
Between 2018 and 2026 the house was restored in stages, and one of the first discoveries, in November 2018, was made right here: under several layers of paint, the original wall covering of the main floor had survived.
The light well, dark blue at the top and pale at the bottom
The inner courtyard is where you best understand what it meant to renovate a nineteenth-century building. Gaudí found one light well; he widened it and made two, so that light would reach every room.
Then he solved the problem every narrow courtyard carries with it: too much light at the top and too little at the bottom. He lined the walls with blue tiles, darker at the top and paler at the bottom, and made the windows smaller at the top and larger at the bottom. The result is that the light reaches every floor evenly.
Stop on the landings and look at the courtyard through the glass panels: the rippled glass distorts the tiles and turns them into waves, as if the courtyard were full of water.
In the middle of the courtyard is the lift, and its wooden cabin is the original one, still in use.
The attic and the dragon’s back
Under the roof was the tenants’ service area: laundry rooms and storerooms. It is the plainest part of the house, all white, and it is held up by a row of sixty catenary arches, arches shaped like a chain hung from both ends and turned upside down, which stand up on their own and give the space the look of a ribcage.
On the terrace you see the dragon’s back up close, covered in tiles of different colours.
The real stars of the terrace, though, are the four groups of chimneys, sinuous and colourful, designed so that the wind would not blow the smoke back into the rooms. The four-armed cross rises right beside them.
Which ticket, and why it matters
What changes from one ticket to another, if the house is the same?
There are four tiers for the general visit, Blue, Silver, Gold and Platinum, and according to the official FAQ the Blue lasts about an hour while the others last an hour and a quarter. The website does not spell out what the Blue leaves out; resellers say that since January 2025 it does not include the terrace. Before you buy, check in the description of the tier that the terrace is there.
The other variable is the time of day. The “Be the First” ticket, the first entry of the morning, is sold with the terrace included and fewer people, and on Tiqets you will find it as the Casa Batlló early-access ticket. Prices are dynamic: the closer you get to the date, the higher they go.
Practical information
Details checked on 27 October 2026 on the official website, casabatllo.es. Prices and opening hours change: check again before you leave.
Further up the same avenue, at number 92, is Gaudí’s last civil work, La Pedrera, where Gaudí, free of an existing building, did without a main staircase and load-bearing walls. If you want to see where Gaudí had started twenty years earlier, his first house is Casa Vicens, in Gràcia.
Photographs from Wikimedia Commons: the façade, by José Luiz, CC BY-SA 3.0; Casa Amatller and Casa Batlló, by C messier, CC BY-SA 4.0; the tiles of the light well, by José Luiz, CC BY-SA 3.0; the light well through the glass, by Davidh820, CC BY-SA 3.0 ES; the dragon’s back, by Canaan, CC BY-SA 4.0; the chimneys and the cross, by José Luiz, CC BY-SA 3.0.
