This project is mainly for Henderson Land’s Kai Tak project (The Henley) to design an application that combines smart home system, access control system, guest registration, facility reservation and other automated experiences. Residents can not only control the doors, windows, curtains, lights, etc. of the unit through the app, but also know all the information about the housing estate, register guest, and make reservations for various facilities on the app. All problems can be solved in the H-1 App. The efficiency of various services saves manpower and time, making it the most intelligent housing estate.