Additional Listing

Thames Water PLC
17 January 2001


THAMES WATER PLC


Pursuant to the above-named Company's conversion of B shares a
further 29,739 Ordinary Shares of 23p each have been issued.
Accordingly, application has been made to The Financial
Services Authority for these shares to be admitted to the
Official List and to the London Stock Exchange for these
shares to be admitted to trading.  The Shares rank pari passu
with the existing issued shares of the Company.

Copies of this announcement are available from the office of
Cazenove & Co for the period of 2 business days from the date
hereof.