Blocklisting Application

National Grid PLC
14 February 2007

14th February 2007



National Grid plc ('NG.')



A block listing application has been made for 5,000,000 Ordinary NG Shares of 11
17/43p each to be admitted to the Official List of the UK Listing Authority and
to trading on the London Stock Exchange.


These shares will be allotted in accordance with the rules of the National Grid
Employee Share Schemes. They will be issued fully paid and will rank pari passu
in all respects with the existing issued Ordinary Shares of the Company.






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