He committed BAA to spending more than £600m a year for the next 10 years. The money would be used to expand and improve UK airports.
He made the comments as BAA revealed pre-tax profit of £531m for the year to 31 March, up 40% on the year before. Revenue increased 5% to £2.2bn.
The design team for T5 includes architect Richard Rogers Partnership and engineers Mott MacDonald and Arup.