Blocklisting - Interim Review

SCHEDULE 5                                   
                                                                               
                        BLOCKLISTING SIX MONTHLY RETURN                        

To: Listing Applications

UK Listing Authority

Financial Services Authority

25, The North Colonnade

Canary Wharf

London, E14 5HS

              Please ensure the entries on this return are typed               

1. Name of company

Slough Estates Plc                                                             

2. Name of scheme

8.25p Cumulative Redeemable Convertible Preference Shares                      

3. Period of return:

From    01.07.06                        To    31.12.06                         

4. Number and class of shares(s) (amount of stock / debt security) not issued
under scheme

nil                                                                            

5. Number of shares issued / allotted under scheme during period:

nil                                                                            

6. Balance under scheme not yet issued / allotted at end of period

nil                                                                            

7. Number and class of share(s) (amount of stock / debt securities) originally
listed and the date of admission;

52,400,000 ordinary shares of 25p to be converted into 8.25p Cumulative        
Redeemable Convertible Preference Shares of 25p with a conversion rate of      
37.0793 per share.                                                             

Please confirm total number of shares in issue at the end of the period in
order for us to update our records

nil                                                                            

Contact for queries

Name          Anne-Marie Norman                                                

Address       Slough Estates Plc, 234 Bath Road, Slough, SL1 4EE               

Telephone     [phone]                                                     

Person making the return

Name          Anne-Marie Norman                                                

Position      Company Secretarial Assistant                                    

Signature                                                                      

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