This stately mansion built by the British colonial government now serves as the official residence of the President of Singapore. Even though it is the official residence, no president has lived here since 1960's. When translated from Malay, the name means "palace".
First Sunday of each month, you can witness the Changing of the Guards ceremony.
The house can be visited on these holidays only, usually from 8:30 a.m. - 6 p.m.:
Chinese New Year (2nd Day)
Labour Day
National Day & Hari Raya Puasa
Deepavali
General admission: SGD 2
Wikipedia https://en.wikipedia.org/wiki/The_Istana
Official website http://www.istana.gov.sg/
Email istana_general_office@istana.gov.sg
Address 91 Cavenagh Rd, Singapore 229629
Coordinates 1°18'25.614" N 103°50'34.805" E