Originally opened in 2020, the hotel hasn’t been upgraded since then, to the best of our knowledge. An up-market 4 star hotel has 79 rooms spread over 8 floors. The Quarter Phromphong by UHG is a member of the UHG chain. Quarter Phromphong by UHG Bangkok Photo Gallery Address: 31 Soi Sukhumvit 31, Khlong Toei …