Director/PDMR Shareholding

UNITED UTILITIES PLC

DIRECTORS' AND PDMR INTERESTS IN SHARES

United Utilities PLC ("the Company") announces that it received notification on
7 April 2008 that the Trustee, Hill Samuel ESOP Trustees Limited, purchased
ordinary shares of £1 each on behalf of the following directors and persons
discharging managerial responsibility on 4 April 2008, to be held in accordance
with the rules of the Company's Inland Revenue approved share incentive plan.
The shares were purchased at a price of 701.0 pence per share.

    Director/PDMR     No. of Shares 
                        purchased   
                                    
MARTIN BRADBURY             21      
                                    
ALISON CLARKE               20      
                                    
CHARLES CORNISH             21      
                                    
CLIVE ELPHICK               21      
                                    
PHILIP GREEN                21      
                                    
GAYNOR KENYON               22      
                                    
TIM WELLER                  22      

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Further information can be obtained from Jane Gilmore, Deputy Company Secretary
+ 44 (0) 1925 237051.

United Utilities' ordinary trade on the London Stock Exchange and its ADRs,
each equal to two ordinary shares, trade OTC in the USA under the Trading
Symbol "UUPLY".