Additional Listing

Thames Water PLC
28 December 2000


Pursuant to the above-named Company's conversion of B shares a
total of 1,762,058 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.