It seems like the changes continue at The Grass Thonglor. After the new Water Library opened, The Catbird Seat (4/F, The Grass Building, 264/1 corner of Thonglor Soi 12, 02-714-8551. thecatbirdrestaurants.com) is the latest new eatery taking over the former site of the Powder Room. The restaurant will serve traditional European food and some Asian dishes.