Director Shareholding

National Grid Transco PLC
06 September 2004

6 September 2004

National Grid Transco plc (NGT)

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Interests Notified by the Trustee for the
Lattice Group Long Term Incentive Scheme (the 'LTIS')

(Notification of Directors' Technical Interests,
Pursuant to Section 324(2) of the Companies Act 1985)

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NGT received a notification today from Mourant & Co. Trustees, as Trustee of the
Lattice Group Employees Share Trust operated in conjunction with the LTIS.
Following the exercise, and disposal or transfer, of 81 shares by participants
on 3 September 2004, the following Executive Director of NGT, Steve Lucas,
together with other employees formerly with Lattice Group, have a technical
interest in the remaining balance of 375,672 NGT shares held by the Trustee.

(Note: For Companies Act purposes, Steve Lucas is deemed to have a technical
interest in all the shares held by the LTIS Trustee, together with all
participating employees. The interest ceases when shares are transferred to
participants by the exercise of LTIS options.)

Contact: Richard Eves, Assistant Secretary (020 7004 3225)




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