Located on the site of the former St Enoch Station, the building is just off Glasgow's famous shopping thoroughfare, Argyle Street and overlooks the historic St. Enoch Square and the original Subway station building (on the right of the photograph). The present St Enoch subway station is now accessible by escalators, and is located just out of sight on the left hand side of the photograph.
Whilst the target of many architectural critics, the building is notable for its massive glass roof, which makes it the largest glass-covered enclosed area in Europe. Not only does this substantially reduce heating and lighting loads (the mall area is lit entirely by natural daylight in summer), it also earned the building its affectionate nickname "The Glasgow Greenhouse".
The glass roofed element surrounds a seven storey car park, and when originally opened, an ice rink. This was closed in 1999 when a refurbishment programme (intitiated to compete with the newer Buchanan Galleries), saw it being replaced by more shops and an enlarged restaurant area.