The architect of Bush House was Richard Shackleton Pope, who constructed first the south part of the warehouse (1831) then extended it to the north in 1835–1836. Its original use was as a warehouse for local iron foundry D., E. & A. Acraman. The building has a Pennant Sandstone exterior with arched ground level entrances and arched windows above. This style of architecture is the first example of the Bristol Byzantine style which became popular in the 1850s. Later conversion to a tea warehouse added interstitial floors.