Director/PDMR Shareholding

Pennon Group PLC
29 September 2005


PENNON GROUP PLC

FOR IMMEDIATE RELEASE

DIRECTORS' SHAREHOLDINGS (PURSUANT TO DR3.1.4R(1))


Pennon Group Plc announces that it received notification on 28 September 2005
pursuant to DR3.1.2R as follows:
     
(1)  Pursuant to the rules of the Company's Restricted Share Plan ('the Plan') 
     the following Ordinary shares of 111p each in the Company vested in persons 
     discharging managerial responsibilities in the Company on 26 September
     2005 in England.

     Dr S C Bird                        -           2,914
     Mr S L Catford                     -           1,222
     Mr A R Hooper                      -           1,802
     Mr R M P Hughes                    -           3,761
     Mr B Hurley                        -           2,601
     Mr E G Jackson                     -           1,387
     Mr D J Morris                      -           1,410
     Mr C G Munce                       -           2,225
     Mr G R Murphy                      -           1,081
     Mr R K Randall                     -           1,946
     Mrs M S Read                       -           2,445
     Mr K C Richards                    -           1,387
     Mr D B Robertson                   -           2,188
     Mr K D Woodier                     -           4,702

     These shares were awarded in September 2002 and held in trust by Pennon 
     Share Plans (Guernsey) Limited ('the Plan Trustee') until vesting which was 
     conditional upon the satisfaction of a Total Shareholder Return performance
     condition in accordance with the terms of the Plan. The shares which vested
     represent 50% of the Award as the performance condition was partially met.  
     The balance of 50% lapsed on the same day.  The value of the shares on the 
     date of vesting and lapsing was 1067p.
     
(2)  Also in accordance with the rules of the Plan the following Ordinary shares 
     of 111p each of the persons discharging management responsibilities (from
     the above shares which vested on 26 September 2005) were sold by the Plan
     Trustee at a price of 1067p each on 26 September 2005 in England to meet 
     the income tax and National Insurance Contribution liabilities of such 
     persons arising from the vesting of the shares.

     Dr S C Bird                        -           1,195
     Mr S L Catford                     -             502
     Mr A R Hooper                      -             739
     Mr R M P Hughes                    -           1,543
     Mr B Hurley                        -           1,067
     Mr E G Jackson                     -             569
     Mr D J Morris                      -             579
     Mr C G Munce                       -             913
     Mr G R Murphy                      -             444
     Mr R K Randall                     -             798
     Mrs M S Read                       -           1,003
     Mr K C Richards                    -             569
     Mr D B Robertson                   -             898
     Mr K D Woodier                     -           1,928
     
(3)  Finally, and again in accordance with the rules of the Plan, persons 
     discharging managerial responsibilities in the Company have obtained a
     conditional interest in Ordinary shares of 111p of the Company as follows:

     Dr S C Bird                        -           6,182
     Mr J Cardwell                      -           4,333
     Mr S L Catford                     -           2,119
     Mr M Hellings                      -           7,654
     Mr A R Hooper                      -           2,803
     Mr R M P Hughes                    -           5,593
     Mr B Hurley                        -           4,239
     Mr E G Jackson                     -           2,803
     Mr C G Munce                       -           3,214
     Mr G R Murphy                      -           2,841
     Mr R K Randall                     -           2,841
     Mrs M S Read                       -           4,003
     Mr K C Richards                    -           1,920
     Mr D B Robertson                   -           3,728
     Mr K D Woodier                     -           8,242

     The shares were awarded on 27 September 2005 at a price of 1070p per share 
     and represent the maximum number of shares to which each person would
     become entitled on 26 September 2008 under the Plan if the relevant 
     performance criterion relating to Total Shareholder Return was met in full.  
     The shares are held in trust by the Plan Trustee.


29 September 2005

www.pennon-group.co.uk



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