Number of "ultra luxury" flats, each more than 3,000 square feet (279 m2), that sold for 219 million USD at Eden in Singapore, the city-state acclaimed for its attention to biophilia, "the idea that humans are innately attracted to nature": 20
The South China Morning Post article linked above credits
WOHA’s Newton Suites, completed in 2007, with starting "the biophilic trend" in Singapore because it led to "legislation requiring 100 per cent replacement" of greenery for new developments like Eden. (Photos: Patrick Bingham-Hall)