Director/PDMR Shareholding

Severn Trent Plc (the 'Company') announces that, as part of the ongoing
remuneration arrangements for certain of its non-executive directors, the
following ordinary shares of 655/19 pence each in the Company have been
purchased:

Name                 Date of Purchase  No. of Shares   Price         Total     
                                          Bought      (pence)    Shareholding  
                                                                Following this 
                                                                   Purchase    
                                                                               
M L Cassoni (Ms)    30 September 2005            106    995                 920
                                                                               
Sir John Egan       30 September 2005          1,253    995               7,288
                                                                               
M C Flower          30 September 2005            290    995               2,363
                                                                               
M J Houston         30 September 2005             90    995               1,403
                                                                               
F A Osborn          30 September 2005            163    995               1,635

www.severntrent.com