In the second half of the 1800s, Manchester's reputation as a financial and commercial centre was boosted by the unprecedented number of warehouses erected in the city centre. In 1806 there were just over 1,000 but by 1815 this had almost doubled to 1,819. Manchester was dubbed "warehouse city". The earliest warehouses were built around King Street although by 1850 warehouses had spread to Portland Street and later to Whitworth Street. Richard Cobden's construction in Mosley Street was the first of many palazzo style warehouse, followed by the elaborate Watts Warehouse in 1854.