Since its earliest days, the zoo has prided itself on appointing leading architects to design its buildings.
Today, it holds two Grade I and eight Grade II listed structures.

The initial grounds were laid out in 1828 by Decimus Burton, the zoo's first official architect from 1826 to 1841, made famous for his work on the London Colosseum and Marble Arch.
Burton's work began with the Clock Tower in 1828 above what was then the llama house, which today is the first aid kiosk.
In 1830 the East Tunnel, which linked the north and south parts of the zoo together for the first time, was completed, which also acted as a bomb shelter during World War II.
Burton concluded his work in 1837 with the Giraffe House, which, due to its functional design, still remains in use as the zoo's giraffe enclosure in the Into Africa exhibit.

After Burton, Sir Peter Chalmers Mitchell and John James Joass were appointed to design the Mappin Terraces.
Completed in 1914, the Mappin Terraces imitates a mountain landscape to provide a naturalistic habitat for bears and other mountain wildlife.
In 1933 the Round House, designed by Berthold Lubetkin's Tecton Architectural Group to house gorillas, was one of the first modernist style buildings to be built in Britain.
The following year the Penguin Pool, also designed by Tecton, was opened; both now grade I listed.
The Modernist dual concrete spiral ramps of the Penguin Pool have made it famous as a piece of modern architecture, but in 2004 the African penguins were moved out of the pool permanently due to it being an unnatural environment for them.

The Snowdon Aviary, built-in 1964 by Cedric Price, Lord Snowdon and Frank Newby, made pioneering use of aluminium and tension for support.
A year later the Casson Pavilion, designed by Sir Hugh Casson and Neville Conder,  was opened as an elephant and rhinoceros house.
The Pavilion was commissioned "to display these massive animals in the most dramatic way" and designed to evoke a herd of elephants gathered around a watering hole.

Many of these buildings are available on a private hire basis for events, as well as a number of the animal houses.
The profits from use of spaces at the zoo are re-invested directly back into the society.
Since its earliest days, the zoo has prided itself on appointing leading architects to design its buildings. Today, it holds two Grade I and eight Grade II listed structures.
The initial grounds were laid out in 1828 by Decimus Burton, the zoo's first official architect from 1826 to 1841, made famous for his work on the London Colosseum and Marble Arch. Burton's work began with the Clock Tower in 1828 above what was then the llama house, which today is the first aid kiosk. In 1830 the East Tunnel, which linked the north and south parts of the zoo together for the first time, was completed, which also acted as a bomb shelter during World War II. Burton concluded his work in 1837 with the Giraffe House, which, due to its functional design, still remains in use as the zoo's giraffe enclosure in the Into Africa exhibit.
After Burton, Sir Peter Chalmers Mitchell and John James Joass were appointed to design the Mappin Terraces. Completed in 1914, the Mappin Terraces imitates a mountain landscape to provide a naturalistic habitat for bears and other mountain wildlife. In 1933 the Round House, designed by Berthold Lubetkin's Tecton Architectural Group to house gorillas, was one of the first modernist style buildings to be built in Britain. The following year the Penguin Pool, also designed by Tecton, was opened; both now grade I listed. The Modernist dual concrete spiral ramps of the Penguin Pool have made it famous as a piece of modern architecture, but in 2004 the African penguins were moved out of the pool permanently due to it being an unnatural environment for them.
The Snowdon Aviary, built-in 1964 by Cedric Price, Lord Snowdon and Frank Newby, made pioneering use of aluminium and tension for support. A year later the Casson Pavilion, designed by Sir Hugh Casson and Neville Conder,  was opened as an elephant and rhinoceros house. The Pavilion was commissioned "to display these massive animals in the most dramatic way" and designed to evoke a herd of elephants gathered around a watering hole.
Many of these buildings are available on a private hire basis for events, as well as a number of the animal houses. The profits from use of spaces at the zoo are re-invested directly back into the society.
London Zoo