Casa Mila Architecture | What to See, Highlights, Construction History & More
Barcelona is home to many stellar buildings designed by Antoni Gaudí. Casa Milà, a Modernista building built as a private residence, is just one of them. The building was commissioned by wealthy couple Pere Milà and his wife Roser Segimón in the year 1906 as their private residence. It took four years to complete the building.
There are many Catholic elements found in the architecture of the building, as the architect was a devoted Catholic. When it was built, Casa Milà was applauded and criticised. Its unconventional architectural style raised many eyebrows, while critics lauded Antoni Gaudí for his innovation and bold ideas that he brought to fruition. Today, Casa Milà is among the most celebrated works of Antoni Gaudí and has become an iconic landmark in Barcelona, visited by more than 1,000,000 tourists each year.
Architecture & Design of Casa Milà | Quick Overview

- Official Name: Casa Milà
- Status/Function/Attraction Type: Private Residence
- Location: Pg. de Gràcia, 92, 08008 Barcelona, Spain
- Founded: 1905
- Area: 1323 m2 per floor (9 floors)
- Architectural Style: Modernisme
- Main Architect: Antoni Gaudí
Architectural Highlights of Casa Milà
Who Designed Casa Milà?
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Antoni Gaudí
Antonia Gaudí has designed many buildings in Barcelona. He is one of the most celebrated Spanish architects whose genius was often questioned by the people of his time. Critics called his work unconventional, but Spanish noblemen commissioned most of their works to Antoni Gaudí. Some of the most known landmarks in Barcelona, like Park Guell, Casa Battlo, Casa Vicens, Palacio Guell and Casa Milà, were designed by him. He also significantly contributed towards designing the Nativity Facade and the Crypt of La Sagrada Familia. Though not much appreciated when he was alive, Antoni Gaudí gained fame posthumously and became a known figure who would inspire architects in the future.
Architectural Style of Casa Milà

- Casa Milà was designed in the Modernisme style of architecture, also known as Catalan modernism.
- It is known as La Pedrera or the Stone Quarry, as it looks like it has been carved out of stone.
- The cultural shift inspired the Modernisme style of architecture in Catalan, where buildings artists and sculptors contributed to the design process. In many Antoni Gaudí buildings, you can see a lot of cultural significance that shaped the Catalan identity from 1888 to 1911.
- Casa Milà was the last personal residence built by Antoni Gaudí. He used geometry to design the interior and exterior sections of the building and incorporated many Catholic symbolisms.
- Casa Milà is a combination of two buildings and nine floors, including a basement that was intended to be used as a garage. The roof has staircase exits, chimneys and skylights that add to the uniqueness of the structure.
Structure of Casa Milà

Casa Milà stands on a plot of 1620 m2, with each floor occupying 1323 m2 of area. The house is built in curves, both inside and outside. It has a stone facade that is connected to each floor. Antoni Gaudí wanted the owners to have the freedom to repair any floor without worrying about damages to other floors. The facade is self-supported and built so that an ample amount of light enters each window.
If you view Casa Milà from the outside, you will see that the structure is divided into three parts. The main part consists of six floors with identical curves. The second part includes two floors in bright white colours, while the roof is the third part.
The Exterior of Casa Milà
Casa Milà’s windows look like a wave from the outside. It is beautifully designed, with a huge facade made out of stone. There are three parts to the exterior of Casa Milà. Here is how each of them is designed.

Facade
Cut out of stone, the facade is a self-supporting structure that is connected to all the internal structures of the floors by curved iron beams. Limestone and stones were used to build the facade of Casa Milà. Due to the curtain wall-like structure of the facade, the large windows stay intact.

Entrance
Antoni Gaudí used a lot of natural elements while designing Casa Milà. It is quite evident when you walk through the entrance door of this structure. Built using glass and iron grilles, the doors are shaped like branches of a tree expanding upwards. They were built to allow entry to both vehicles and human beings.

Patios
Two large patios at Casa Milà were built to provide enough ventilation and natural lighting inside all the rooms. When it was built, most buildings only had one patio to provide ventilation to the kitchen and toilets. But as Casa Milà has 16 apartments, Antoni Gaudí added two patios to make sure none of the rooms would be suffocating.
Casa Milà Interior
Casa Milà is just as spectacular from the inside as it is from the outside. With extravagant furniture, entrance halls, a well-designed roof and 16 apartments, including the apartment floor of the couple, let’s take a look at what is inside Casa Milà.

Entrance Halls
The entrance halls of Casa Milà are decorated with wall paintings and tapestries depicting different moments from mythology. Even the columns were by renowned artists of the era to achieve the desired flamboyancy, which the owners of Casa Milà preferred.

The Apartment
The main floors became the couple's residence while other rooms were rented out. This main floor had antique furniture that suited the taste of the owners. The ceilings were also decorated, giving the whole apartment a rich and luxurious feel. Other rooms were designed in siMilàr ways.

The Roof
The rooftop is perhaps the most extraordinary area of Casa Milà. Marble sculptures, skylights, chimneys and round staircases add to its beauty. It was decorated using glass, broken pieces of pottery and marble to give the roof a sort of bohemian feel, which was not commonly seen in buildings in Barcelona.
Casa Mila Rooftop
Espai Gaudí
The Espai Gaudí used to be an attic with rib-like arches built around the washing rooms. Today, it has been converted into a museum honouring the iconic works of Antoni Gaudí, his life and his original collection of pictures, building plans, videos and models.
Book Tickets to Casa Mila
Frequently Asked Questions About Casa Milà Architecture
A. Casa Milà in Barcelona was built in the Modernisme style, also known as Catalan modernism architecture.
A. Casa Milà was designed by renowned Spanish architect Antoni Gaudí.
A. Casa Milà’s architecture is famous for its unconventional style and wave-like appearance from the outside. It is one of the most celebrated works of Antoni Gaudí.
A. Casa Milà was inspired by the Modernista movement in Catalan. Antoni Gaudí wanted to use natural elements to make this private residence, incorporating art and sculpting into his design work.
A. Construction of Casa Milà began in 1906 and was completed by 1910.
A. Casa Milà is 111 years old, built between 1906 to 1910.
A. Casa Milà has 16 apartments, a rooftop, a museum dedicated to Antoni Gaudí, two patios, wall paintings and antique furniture that belonged to the owners of the building.
A. The most iconic part of the exterior is the facade. The entrance gates resemble branches of a tree, while the patios or courtyards were built to ensure ample light and ventilation for the 16 apartments.
A. The interior of Casa Milà includes 16 apartments, a roof, entrance halls, the attic, a museum, and furniture that were once owned by Pere Milà and his wife, Roser Segimón.
A. Casa Milà is built on a plot of 1620 m2. It has nine floors, a basement and a roof.
A. Each floor of Casa Milà takes up 1323 m2 of area.
A. Casa Milà was made using stone, brick, limestone, marble, iron grilles, iron bars and iron sheets.
A. Yes, La Padrera at Night is a part of Casa Milà. It includes audiovisual shows that take you through different parts of the building, its history and the works of Antoni Gaudí.
A. Catalunya La Pedrera Foundation, the owners of the building, organises La Pedrera at Night.
A. To save time and money, you must buy your tickets online and get skip-the-line access to one of the most iconic landmarks in Barcelona. Click here to buy.