The dragon on this gate has a specific name, and it's not that of Saint George. It is Ladón, the dragon that guarded the garden of the Hesperides and whom Hercules killed. The reference is concrete: L'Atlàntida, the epic poem by Jacint Verdaguer. Gaudí wasn't decorating a door with a creature; he was illustrating a book.
And there is more precision than meets the eye. The dragon is positioned according to the outline of the constellation of Draco, so the figure is also a map of the sky. On the pillar that supports the blade, there is an antimony tree of the Hesperides, thus completing the mythological scene: the guardian, the tree, and the golden apples it guarded.
The eyes are made of glass. The wrought ironwork is by Joan Oñós, the same blacksmith who created the wrought iron gate of the Casa Vicens and the two serpents at the entrance of the Palau Güell. If there's a piece of ironwork in Barcelona that you can recognize from ten meters away, it almost always comes from his workshop.
What exactly is related to Gaudí here?
It's best to clarify this beforehand, because the expectation is often different. Gaudí did not design the main house of the estate. The Can Custó farmhouse had been purchased in 1859 by Joan Güell i Ferrer, Eusebi's father, and it was Eusebi who expanded the property to over three hectares. What he commissioned Gaudí to design, between 1884 and 1887, were four elements: the perimeter wall, the gatehouse, the stables, and the riding arena.
Of the four original gates of the enclosure, three remain, although altered, and the Font d'Hèrcules still stands. Those who pass through the gate expecting a Gaudí-esque mansion behind it will not find one, and not because it was lost: it never existed.
There was also a piece that was here and is no longer. In 1881, Gaudí built a kiosk for the visit of Alfonso XII to Comillas, on August 6th; in 1883 it was moved to this estate, and from then on it disappeared, and sources do not say what happened to it. It is one of several works by Gaudí of which only the mention is preserved today.
The money that was used to purchase this land
It's worth mentioning where the capital came from, because the details of the monument's funding are often overlooked. The farmhouse was purchased in 1859 by Joan Güell i Ferrer, and his fortune, according to available sources, was amassed as a slave owner in Cuba. This is not a minor detail: it is the economic foundation upon which much of the patronage that is visited today was built.
His son, Eusebi Güell (1846-1918), married Isabel López i Bru, daughter of the Marquis of Comillas, and was named Count in 1910. He commissioned six works from Gaudí over forty years, and this was one of the first. Without that relationship, almost nothing of what is shown today would exist: the Raval palace, the Park Güell, and the crypt of Santa Coloma all came from the same source of funding.
The detail
The teeth, one by one
From a close look, it's easy to understand why this piece is studied in blacksmithing schools. The mouth is open, the tongue protrudes like a spear, and the teeth are forged one by one, without repetition. The unfolded wing also doesn't repeat the design: each section of the lattice solves a different problem.
What we are not going to tell them is how tall it is. The dimensions of the gate are not documented, and the "about five meters" that the guides repeat has no source behind it.
What is read and what is recorded
Few of Gaudí's buildings contain so much misinformation per square meter, and almost all of it is of a specific type: it's not charming folklore, but rather administrative errors that are copied without verification. This table organizes and clarifies these inaccuracies.
| What's being read | What is included |
|---|---|
| "The pavilions belong to UPC." | They have been owned by the University of Barcelona since 1969. The Real Gaudí Chair, which is affiliated with UPC, had its headquarters here until 2008 |
| "The Royal Palace of Pedralbes is a renovated house designed by Gaudí." | It is a new building, commissioned on August 4, 1921, to Eusebi Bona and Francesc de Paula Nebot |
| "Gaudí built the house on the estate." | Gaudí designed the wall, the gate, the stables, and the riding arena. The main house, however, was not his design |
| "The gate is about five meters long." | The dimensions of the gate are not documented in any available source |
| "It was crafted by the Vallet i Piqué workshop." | That attribution does not appear in any source. The blacksmith documented as having created it is Joan Oñós |
| "This is where mosaic art was born, in the riding school." | It is often cited, but the statement is not properly sourced. The first examples with solid evidence are the chimneys of the Palau Güell |
| "UNESCO World Heritage Site" | Spain submitted them in 2005, but ICOMOS rejected them, along with seven other projects |
The equestrian arena and the mosaic
This deserves a separate explanation because it is the one that is most widely circulated. At the entrance of the riding school, there is a ceramic covering that is mentioned everywhere as the first appearance of "trencadís" in Gaudí's work. This statement appears in the "Trencadís" entry on the Catalan Wikipedia, and from there it has been copied to dozens of articles, but it does not have a reference, and a second verification does not support it.
Facing us is a solid fact: the chimneys on the roof of the Palau Güell, from 1886 to 1890, made with ceramics from the Pujol i Bausis factory, are the first documented application. It's possible that the use of ceramic tiles was earlier, since the pavilions date from 1884-1887, and the chronology fits. However, fitting chronologically is not the same as being documented, and that difference is exactly what separates a fact from a repeated assumption over forty years.
From a farmhouse to a completed project
Nine dates, two universities, and a kiosk that got lost along the way.
The origins
1859
The farmhouse
Joan Güell i Ferrer, the father of Eusebi, purchased the Can Custó estate. His son would later expand the property, increasing its size to over three hectares.
1881
Comillas Kiosk
Gaudí built a kiosk for the visit of King Alfonso XII to Comillas on August 6th.
1883
Kiosk arriving soon
He was moved to the Güell Estate. After that, he disappeared, and there is nothing left of him today.
The growth
1884-1887
Gaudí designs the pavilions
The perimeter wall, the gate, the stables, the riding arena, and the dragon-shaped fence.
1969
University and protection
The estate is transferred to the University of Barcelona, and the decree of July 24th declares the buildings as historical and artistic monuments.
Today
2005
UNESCO says otherwise
Spain is proposing them for inclusion, along with eleven other works by Gaudí, but ICOMOS is excluding them.
2008
The Gaudí Chair has closed
The Royal Gaudí Chair, which is affiliated with UPC, is moving out of its current location. Sources differ on the year it was established, with some citing 1968 and others citing 1977.
2015
Open to the public
For the first time, it is now possible to enter the area without any restrictions.
2018
Closed for renovations
Since June, they have been closed. We were unable to verify the status of the renovation project as of 2026.
Who do they belong to, and why does everyone say "UPC"?
The pavilions have been owned by the Universitat de Barcelona since 1969. The confusion with the Universitat Politècnica de Catalunya has a specific and very reasonable cause: the Reial Càtedra Gaudí, which belongs to the UPC, had its headquarters within the grounds, in the stables, for decades. Regarding the year in which the fountains were installed, sources provide 1968 and 1977; they were removed in 2008. The grounds also house the botanical garden of the Faculty of Biology.
The archive of that chair deserves a paragraph, because it explains many questionable attributions. Its digitalized collection contains 206 items, of which 138 belong to Joan Matamala and only 22 to Gaudí. This doesn't mean that Gaudí is absent from the archive: the paper collection contains around one hundred thousand documents, and the absence online doesn't prove the absence in the repository. However, it does explain why so many attributions to Gaudí actually come from drawings by other artists.
Behind that, there is a structural reason, and it has a name. Francesc Berenguer i Mestres (1866-1914) left his architecture studies without obtaining the degree, so he could not sign projects, and the College of Architects of Catalonia states it plainly: it is common to find projects of his signed by Gaudí. The consequence is uncomfortable and must be accepted: a signature by Gaudí does not prove that the project is by Gaudí. He worked alongside him from 1887 until his death, and when he lost him, Gaudí said that he had lost his right hand.
The situation in 2026: it needs to be verified
The pavilions opened to the public in 2015 and have been listed as closed for works since June 2018. We have not been able to verify where that renovation stands now, so here it remains what it is: a status pending confirmation, not a permanent fact. Before making the trip, it is worth checking the Universitat de Barcelona website.
The good thing is that what almost everyone comes to see doesn't depend on that. The dragon gate faces the street and can be viewed from the sidewalk, with the enclosure open or closed, for free and at any time. It's one of the few works by Gaudí for which this is true, and that's why it also appears on the list of Gaudí works that can be seen without paying.
FAQ
What dragon is depicted on the gate?
Can you visit Güell Estate?
Are the pavilions owned by the University of Barcelona (UB) or the UPC (Universitat Politècnica de Catalunya)?
Is the Royal Palace of Pedralbes the house that Gaudí designed?
Was the mosaic technique born here?
How tall is the dragon's gate?
Are they on the UNESCO list?
Seven other things you can see from the street
Street lamps from 1879, a prize-winning facade, a door with a replica cross, and even the floor tiles.
Data verified on. Authorship, ownership, and chronology: records from the University of Barcelona and the Gaudí Royal Chair archive. Protection: decree of July 24, 1969, and UNESCO file number 320.