Airports operator BAA says it is planning to invest 8.1 billion pounds in its three London airports over the next 11 years.
BAA also said in a statement on Friday it expected overall passenger numbers at the three airports -- Heathrow, Gatwick and Stansted -- to rise 46 percent over the period.
The bulk of the money will be spent at Heathrow where BAA is building a new fifth terminal and will upgrade existing facilities.
BAA said the plans were dependent on it getting permission to increase capacity.
(source: BAA)