Blocklisting Interim Review

Slough Estates PLC
14 July 2005


                                   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

2002 Unapproved Executive Share Option Plan

3. Period of return:

From                   01.01.2005   To                              30.06.2005

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

2,913,239 ordinary shares of 25p

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

None

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

2,913,239 ordinary shares of 25p

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

3,000,000 ordinary shares of 25p RA/Slough Estates plc/0020

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

422,813,075 ordinary shares of 25p

Contact for queries

Name                Anne-Marie Norman

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

Telephone                           01753 213414

Person making the return

Name                Anne-Marie Norman

Position            Company Secretarial Assistant

Signature

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