Exhibit 99.1
Appendix 3Y
Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/9/2001.

	Name of entity James Hardie Industries N.V.
	ARBN 097 829 895 Incorporated in The Netherlands. The liability of members is limited.

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

	Name of Director			Mr Louis GRIES
	Date of last notice			2 June 2009

Part 1 — Change of director’s relevant interests in securities
In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

	Direct or indirect interest			Direct
	Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.			Not applicable
	Date of change			20 August 2009
	No. of securities held prior to change			•    127,675 fully paid ordinary shares/CUFS registered in the name of the Director; and •    3,867,544 options over unissued ordinary fully paid shares/CUFS
	Class			Ordinary shares/CUFS and options
	Number acquired			215,197 ordinary shares/CUFS
	Number disposed			149,536 ordinary shares/CUFS and 215,197 options.
	Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation			•    Exercise options - A$667,017 •    Sale of shares - A$994,638.70

+ See chapter 19 for defined terms.
11/3/2002		Appendix 3Y Page 1

Appendix 3Y
Change of Director’s Interest Notice

	No. of securities held after change			•    193,336 fully paid ordinary shares/CUFS registered in the name of the Director; and •    3,652,347 options over unissued ordinary fully paid shares/CUFS comprising: •     974,347 options under the 2001 Equity Incentive Plan; •     1,000,000 options under the Managing Board Transitional Stock Option Plan 22 August 2005; •     860,000 options (ROCE) under the 2006 JHINV Long Term Incentive Plan; and •     818,000 options (TSR) under the 2006 JHINV Long Term Incentive Plan.
	Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back			Cashless exercise of options, due to expire in November 2009 and 2010 under the 2001 Equity Incentive Plan. The disposal of shares is required to fund the exercise price and US State and Federal withholding tax obligations (which are payable immediately on exercise of options).

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

	Detail of contract			Not applicable
	Nature of interest			Restricted Stock Units (RSUs) are contractual entitlements to be issued ordinary shares/CUFS upon satisfaction of certain conditions.
	Name of registered holder (if issued securities)			Not applicable
	Date of change			Not applicable
	No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed			Not applicable
	Interest acquired			Not applicable
	Interest disposed			Not applicable
	Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation			Not applicable
	Interest after change			No change. However, the current interests in contracts are: •    558,708 Relative TSR RSUs; •    201,324 Deferred Bonus RSUs; and •    487,446 Executive Incentive Program RSUs.

+ See chapter 19 for defined terms.
Appendix 3Y Page 2		11/3/2002