 As part of this expansion, the company purchased the St Mary's College campus that adjoined Cadby Hall in 1922 and began using the land and property when the college moved to Strawberry Hill in 1925.Blocks were given a letter designation, with A Block being the original piano manufacturing area, which was converted into bakeries.Subsequent blocks were added to the site, and as time and production moved on throughout the 20th century, old blocks would be renovated or demolished and new ones built in their place, although the original Cadby Hall building (A Block) remained largely intact right through until the demolition of the entire complex in 1983, by which time it had become J Block.