Good Class Bungalows (GCBs) are the most prestigious and expensive homes in Singapore. GCBs even inspired homes in the movie “Crazy Rich Asians.” Today, their prices are soaring as the island’s ultrarich are fighting to get one. And there are all kinds of building rules owners have to follow once they get a GCB.

In the following video, from Insider Business, we get to tour two Good Class Bungalows with Julian Yip, managing director of Realstar Premier Group, and Billionaire’s Row with YouTuber Si Ling to see how these rising prices could affect the rest of the island’s residents.