CLEAN : Grand London glasshouse showcasing rare plants to reopen

The video tutorial covers the process of relocating and reintroducing plants during the renovation of a glass house. It highlights the initial efforts starting in 2012, the construction phase, and the reintroduction of rare and threatened plant species. The transformation of the glass house is discussed, showcasing the improvements made, including new heating, lighting, and ventilation systems to provide optimal growing conditions for the plants.

What is the current status of the construction work mentioned in the text?

Describe the condition of the house before and after the refurbishment.