Exhibit 99.1

     
  (JAMES HARDIE LOGO)
     
25 January 2005
  James Hardie Industries N.V.
  ARBN 097 829 895
  Incorporated in The Netherlands
  The liability of members is limited
 
   
The Manager
Company Announcements Office
Australian Stock Exchange Limited
  Level 3, 22 Pitt Street
Sydney NSW 2000 Australia 
20 Bridge Street
SYDNEY NSW 2000
  Telephone (02) 8274 5305
Fax (02) 8274 5218
   
  GPO Box 3935
  Sydney NSW 2001 Australia
                                                            

Dear Sir/Madam

James Hardie will conduct a management briefing on its 3rd Quarter FY05 Results on Monday, 14 February 2005.

A management briefing will be held at the AGL Theatre, Museum of Sydney, 37 Phillip Street, Sydney commencing at 11.00am. A teleconference and audio webcast will also be available on the following:

Domestic: 02 9423 1645
International: +61 2 9423 1645
URL: http://events.webeventservices.com/jameshardie/2005/02/14/

A further management briefing will be held in Melbourne at Level 35, West Tower Suite, The Sofitel Melbourne, 25 Collins Street on Tuesday, 15 February from 11.00am.

 
Yours faithfully
 
/s/ Steve Ashe

Steve Ashe
Vice-President, Investor Relations