Original sentence: By the end of 20th century, the Hong Kong Housing Authority has decided to demolish and rebuild at the site of the old Sau Mau Ping Estate.The redevelopment project was finally completed in 2001, and the new public rental housing estate was named Sau Mau Ping Estate, the same name as the original one
Edited sentence: By the end of 2000, the Hong Kong Housing Authority has decided to demolish and rebuild at the site of the old Sau Mau Ping Estate, which were condemned in 2003.The redevelopment project was finally completed in July 2009, and the new public rental housing estate was named Sau Mau Ping Estate, the same name as the original one.They were occupied in 3rd quarter, 2009