Achievement / Pencapaian, History / Sejarah, Most / Terpaling, Place / Tempat, Record, World Country / Negara Istana Sultan Brunei ada 1,788 bilik ¹ , 257 bilik air. Bekas Istana Habsburgs ada 2,600 bilik di Austria January 27, 2024 Mohd Shahrizan Mohd Saad Leave a comment The Istana Nurul Iman is the official residence of the Sultan of Brunei, with 1,788 rooms ¹ , 257 bathroom. Hofburg Palace in Austria with 2,600 rooms Sources : ¹Majalah Mastika