The decrease in profit was largely accounted for by a £1.2m increase in staff costs to £22.8m and an increase of nearly £2.8m in operating charges. It did not pay a dividend for the second year in a row.
A spokesperson for the practice said that Foster and Partners had been hit by a slowing market. She said: "There was a downturn in the economy as well as a knock-on effect from the events of 11 September."
The accounts, which include contributions from offices in Germany, Hong Kong, the Netherlands and Singapore, were approved by the directors last month. They were signed off by directors Graham Phillips and Ken Shuttleworth.
The directors are satisfied with the group’s financial position at the year end Foster and Partners’ review