Jeffrey Cheah has built his fortune developing townships—with condos, hotels, malls, hospitals, schools and even theme parks. : Luxury touches abound at Sunway Sanctuary, which occupies the top 16 floors of a newly built tower outside Kuala Lumpur. It has an infinity pool with sweeping views, a 24-hour concierge, cinema, karaoke suites, mahjong rooms, all befitting a five-star hotel. But it’s not a hotel. Sunway Sanctuary is an upmarket take on retirement living, part of the Sunway Group’s major bet on the healthcare business, targeting private healthcare patients, medical tourists and wealthy retirees in Malaysia and beyond.