The University of Greenwich, which owns the site, called in Sheffield-based landscape architects Weddle Landscape Design to advise on the best environmentally-friendly approach to take to create a cool temperature greenhouse to grow exotic plants from the Southern Hemisphere.
Avery Hill Winter Garden was originally built in 1890 by Colonel North. Following his death, it was bought by London County Council. The gardens were opened to the public in 1962, but various parts have since been closed due to the buildings becoming unsafe and the rising cost of maintenance.
The university aims to complete the next two phases of restoration in time for the London 2012 Olympics. Principal Mike Browell said: "We're really proud to have helped restore this beautiful Victorian glasshouse to its former glory."