Blocklisting - Interim Review

SCHEDULE 5

                       BLOCK LISTING 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 type

 1. Name of company                                                            
                                                                               
Caledonia Investments plc                                                      

 2. Name of scheme                                                             
                                                                               
Caledonia Investments plc Executive Share Option Scheme                        

3. Period of return: From 1 July 2005………to…31 December 2005………………………..         

4.  Number and class of share(s) (amount  379,781 ordinary 5p shares           
    of stock/debt security) not issued                                         
    under scheme                                                               

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

6.  Balance under scheme not yet issued/  379,781 ordinary 5p shares           
    allotted at end of period                                                  

7.  Number and class of share(s) (amount  683,000 ordinary 5p shares originally
    of stock/debt securities) originally  listed on 4 August 1995 under A/3627/
    listed and the date of admission;     1995                                 

Please confirm total number of shares in issue at the end of the period in     
order for us to update our records                                             
                                                                               
64,105,796 (excluding 100,000 shares held in treasury)                         

Contact for queries: Mrs E J Osborn,    Address: Cayzer House, 30 Buckingham   
Assistant Company Secretary             Gate, London, SW1E 6NN                 

Name: Mrs E J Osborn                    Telephone: [phone]               

Person making return Name:……Mrs E J Osborn…………………………………………….

Position:…Assistant Company Secretary ……………………………………………….Signature:………………………………
………………