Holding(s) in Company

TR-1 (i) NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

RIGHTMOVE PLC

2. Reason for the notification                                  State          
                                                                Yes/No         
                                                                               
An acquisition or disposal of voting rights                  Not advised       
                                                                               
An acquisition or disposal of financial instruments                            
which may result in the                                                        
acquisition of shares already issued to which voting                           
rights are attached                                                            
                                                                               
An event changing the breakdown of voting rights                               
                                                                               
Other (please specify):                                                        

3. Full name of person(s) subject to the notification   Caledonia Investments  
obligation (iii):                                              Pty Ltd         
                                                                               
4. Full name of shareholder(s) (if different from 3.)        Not advised       
(iv):                                                                          
                                                                               
5. Date of the transaction (and date on which the          21 December 2007    
threshold is crossed                                                           
or reached if different) (v):                                                  
                                                                               
6. Date on which issuer notified:                          21 December 2007    
                                                                               
7. Threshold(s) that is/are crossed or reached:                   4%           
                                                                               
8. Notified details:                                                           

A: Voting rights attached to shares

 Class/type of      Situation       Resulting situation after the triggering   
     shares        previous to                  transaction (vii)              
  if possible     the Triggering                                               
 using the ISIN  transaction (vi)                                              
      CODE                                                                     
                                                                               
                 Number   Number   Number    Number of voting    % of voting   
                   of       of       of        rights (ix)          rights     
                 Shares   Voting   shares                                      
                          Rights                                               
                          (viii)                                               
                                                                               
                                             Direct   Indirect Direct  Indirect
                                               (x)      (xi)                   
                                                                               
ORD                Not      -     5,243,382 5,243,382           4.05%          
                 advised                                                       
  GB00B0MFTM73                                                                 
                                                                               

B: Financial Instruments

Resulting situation after the triggering transaction (xii)

   Type of     Expiration       Exercise/        Number of voting       % of   
  financial    date (xiii)     Conversion       rights that may be     voting  
 instrument                   Period/ Date       acquired if the       rights  
                                  (xiv)             instrument                 
                                              is exercised/converted           
                                                                               

Total (A+B)                                                                    
                                                                               
Number of voting rights                 % of voting rights                     
                                                                               
               5,243,382                4.05%                                  

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable (xv):



Proxy Voting:


10. Name of the proxy holder:                                                  
                                                                               
11. Number of voting rights proxy holder will cease to hold:                   
                                                                               
12. Date on which proxy holder will cease to hold voting                       
rights:                                                                        

13. Additional information:                                                    
                                                                               
14. Contact name:                                             Liz Taylor       
                                                                               
15. Contact telephone number:                                 0207 087 0700