The next Istana Open Houses have been scheduled as follows:
Year 2004
Friday, 23 January 2004 [to celebrate Chinese New Year]
Saturday, 1 May 2004 [to celebrate Labour Day]
Sunday, 1 August 2004 [to celebrate National Day]
Monday, 15 November 2004 [to celebrate Deepavali and Hari Raya Puasa]