BAA plc: Disclosure of interests in shares under S198-202 of the Companies Act
1985

On 11 December 2003 the Company was notified that Aviva plc and Morley Fund
Management Limited (a subsidiary of Aviva plc) have an interest of 32,253,247
ordinary shares in the Company representing 3.01% of its issued share capital.
Details of the accounts in which the shares are registered are given below:

Registered Name                           Shares Held  
                                                       
BNY Norwich Union Nominees Limited        8,145,842    
                                                       
BT Globenet Nominees Limited              18,410       
                                                       
Chase GA Group Nominees Limited           13,551,352   
                                                       
Chase Nominees Limited                    1,375,644    
                                                       
CUIM Nominee Limited                      8,202,429    
                                                       
RBSTB Nominees Limited                    825,000      
                                                       
Hibernian Investment Managers Limited     134,570      
                                                       
Total                                     32,253,247   


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