1. Fung shui issue 2. Most of the flats facing West, East and North thus less sunlight 3. Some flats facing graves 4. Some flats facing Tower 1 and 7 of The Royale estate which is super close. (Tower5 of Gold Coast Bay) 5. Another estate is in the middle. 6. Fire engine will hardly get into the estate. 7. Corridor/ hallway is so long for some layout thus efficiency issue.