Director/PDMR Shareholding

UNITED UTILITIES PLC                              

                      DIRECTORS' AND PDMR'S SHAREHOLDINGS                      

                               12 FEBRUARY 2008                                

Performance Share Plan

Under the rules of the performance share plan, awards are subject to uplift for
notional dividends made or paid during the performance period. Accordingly, the
dividend shares shown below have been notionally added to and form part of the
award. In respect of the interim dividend of 15.2 pence per share paid on 11
February 2008, the number of additional shares granted has been calculated
using the closing share price on 11 February 2008 of 688.0p pence per share.
The figures reflect the maximum number of shares over which the option might be
exercised. The actual number will depend upon the extent to which the
established performance conditions are satisfied over the performance period.
The awards are issued for nil consideration and may be exercised at nil cost to
the participant.

Awarded 8 September 2006 - Performance period 1 April 2006 to 31 March 2009

Name of person            Original    Cumulative Shares added     Balance
discharging managerial                balance on for dividend     carried
responsibilities            no. of         which      paid 11     forward
                          Ordinary      notional     February            
                            shares dividend paid         2008            
                           awarded                                       
                                                                         
Philip Green                82,249        91,401        2,019      93,420
                                                                         
Martin Bradbury             17,308        19,233          424      19,657
                                                                         
Charlie Cornish             40,237        44,713          987      45,700
                                                                         
Clive Elphick               16,643        18,494          408      18,902
                                                                         
Gaynor Kenyon               11,539        12,821          283      13,104
                                                                         
Tim Weller                  47,338        52,605        1,162      53,767
                                                                         
Totals                     215,314       239,267        5,283     244,550

Awarded12 June 2007 - Performance period1 April 2007 to 31 March 2010

Name of person           Original    Cumulative  Shares added     Balance
discharging                no. of    balance on  for dividend     carried
managerial               Ordinary         which       paid 11     forward
responsibilities           shares      notional February 2008            
                          awarded dividend paid                          
                                                                         
Philip Green               92,359        96,489         2,131      98,620
                                                                         
Alison Clarke              19,934        20,825           460      21,285
                                                                         
Charlie Cornish            45,183        47,203         1,042      48,245
                                                                         
Clive Elphick              14,951        15,619           345      15,964
                                                                         
Gaynor Kenyon              11,961        12,495           276      12,771
                                                                         
Tim Weller                 53,157        55,534         1,226      56,760
                                                                         
Totals                     284057       248,165         5,480     253,645

Awarded 14 December2007 - Performance period 1 April 2007 to 31 March 2010

Name of person           Original    Cumulative  Shares added     Balance
discharging                no. of    balance on  for dividend     carried
managerial               Ordinary         which       paid 11     forward
responsibilities           shares      notional February 2008            
                          awarded dividend paid                          
                                                                         
Tom Keevil                 21,811        22,786           503      23,289

Matching Share Plan

Under the rules of the matching share plan, awards are subject to uplift for
notional dividends made or paid during the performance period. Accordingly, the
dividend shares shown below have been notionally added to and form part of the
award. In respect of the interim dividend of 15.2 pence per share paid on 11
February 2008, the number of additional shares granted has been calculated
using the closing share price on 11 February 2008 of 688.0p pence per share.
The figures reflect the maximum number of shares over which the option might be
exercised. The actual number will depend upon the extent to which the
established performance conditions are satisfied over the performance period.
The awards are issued for nil consideration and may be exercised at nil cost to
the participant.

Awarded 30 July 2007 - Performance period 1 April 2007 to 31 March 2010

Name of director/          No. of    Cumulative  Shares added     Balance
senior manager           Ordinary    balance on  for dividend     carried
discharging                shares         which       paid 11     forward
managerial                awarded      notional February 2008            
responsibilities                  dividend paid                          
                                                                         
Charlie Cornish            14,606        15,259           337      15,596
                                                                         
Philip Green               51,624        53,932         1,191      55,123
                                                                         
Clive Elphick               8,264         8,633           190       8,823
                                                                         
Gaynor Kenyon               4,858         5,075           112       5,187
                                                                         
Tim Weller                 22,015        22,999           508      23,507
                                                                         
Totals                    101,367       105,898         2,338     108,236

Retention Awards

As part of the terms of Philip Green's recruitment, the company established a
matched share incentive scheme for him as sole participant by which the company
undertook to match (on 16 January 2007) an investment of 100,000 shares made by
Mr Green himself upon his appointment provided he remains with the group until
12 February 2011. The award is subject to a dividend enhancement mechanism by
which further shares are notionally added to the award on each intervening
dividend payment date.

As part of the terms of Tim Weller's recruitment, the company established a
matched share incentive scheme for him as sole participant by which the company
undertook to match an investment of 39,000 shares made by Mr Weller himself
upon his appointment (on 1 July 2006) provided he remains with the group up to
and beyond the implementation of the next regulatory reviews. The award is
subject to a dividend enhancement mechanism by which further shares are
notionally added to the award on each intervening dividend payment date.

In order to facilitate the retention of Charlie Cornish up to and beyond the
next regulatory reviews the company established a special long-term incentive
scheme for him as sole participant. Under the scheme an award equal to his
annual salary was granted to him in the form of an option over 47,027 shares on
16 March 2007. The award is subject to performance conditions and is also
subject to a dividend enhancement mechanism by which further shares are
notionally added to the award on each intervening dividend payment date.

The dividend shares shown below have been notionally added to and form part of
the award. In respect of the interim dividend of 15.2 pence per share paid on
11 February 2008, the number of additional shares granted has been calculated
using the closing share price on 11 February 2008 of 688.0p pence per share.

                                               Philip       Tim     Charlie
                                                Green    Weller     Cornish
                                                                           
Original award ordinary shares                100,000    39,000      47,027
                                                                           
Shares added re dividend paid 25 August         4,398     1,715       2,068
2006                                                                       
                                                                           
Shares added re dividend paid 12 Feb 2007       1,973       769         927
                                                                           
Shares added re dividend paid 24 August         4,757     1,855       2,237
2007                                                                       
                                                                           
Shares added re dividend paid 11 February       2,455       957       1,154
2008                                                                       
                                                                           
Totals carried forward                        113,583    44,296      53,413

Share Incentive Plan

Notification was been received on 12 February 2008 that the Trustee, Hill
Samuel ESOP Trustees Limited, purchased ordinary shares of £1 each on behalf of
the following directors/PDMRs on 11 February 2008, as dividend reinvestment in
accordance with the rules of the Company's Inland Revenue approved share
incentive plan ("the SIP"). The shares were purchased at a price of 695.5 pence
per share.

        Director              Balance held    No. of Shares Revised balance
                                  prior to        purchased                
                                  dividend                                 
                                  purchase                                 
                                                                           
Philip Green                           755               16             771
                                                                           
Gaynor Kenyon                          358                7             365
                                                                           
Clive Elphick                         1824               40            1864
                                                                           
Alison Clarke                           80                1              81

__________________________________________________________________________

Further information can be obtained from Paul Davies, Deputy Company Secretary
44 1 925 237051.

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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".