Loudon's design for a circular glasshouse

'Next morning the family went to see the Botanical Garden which John had designed ten years earlier. The greater part of his plan had been implemented but he was disappointed by the hothouses. A cheaper design had been substituted for his circular hot-house. The result was, in his opinion: ‘the worst in point of taste that we know of.’ He thought it not unlike the turrets sometimes built for pigeons on the roofs of offices. ‘To our eyes,' he wrote, 'the glasshouse is most offensive. This impression is by no means diminished when entering. Instead of being filled with large plants, such as bananas, palms, and tropical trees, it contains a stage covered by small plants in pots. Had it been modelled on our glass dome in Porchester Terrace, it would have outshone Mr Paxton’s Great Stove at Chatsworth. Pinching pennies is bad policy, especially when designing for the public.’ ‘’This is a quote from The Claudians: gardens, landscapes, reason and faith: John Claudius Loudon and Claudius Buchanan, Tom Turner (Kindle, 2024).

Loudon's contribution to the development of modern architecture

John Claudius Loudon made significant advances in the design of curved and circular glass structures by incorporating innovative elements such as ridge and furrow glazing and tensioned steel. Ridge and furrow glazing, which alternates glass panes in a sawtooth-like pattern, improved light transmission and drainage, making structures more efficient for plant cultivation. Loudon also experimented with tensioned steel frameworks, which provided greater structural stability and allowed for larger glass expanses without compromising strength. His work influenced the later development of large, light-filled glass structures, including conservatories and exhibition spaces like the Crystal Palace.

Nikolaus Pevsner acknowledged the Crystal Palace as a transformative structure in architectural history, particularly for its pioneering use of glass and iron. He viewed it as a precedent for modern architecture, influencing the development of glass and steel buildings. The Palace's prefabricated modular system, transparency, and openness broke with traditional architectural forms, offering a vision of the future. Pevsner emphasized that its innovative construction set the stage for the functional and aesthetic principles of the industrial and modernist movements in architecture.