By just refering to the floor plan Ideal place: A, B NO-NO place: C To avoid: D Yet again, there are some consideration such as furniture layout, deity type,etc
Perhaps for a start .... Fengshui mainly is about the flow of the "QI" in the house, from the main door (wealth) and how it stay or escape out from the windows. "QI" is also known as energy (ang moh), and consist of good and bad. It is often not easy to audit HDB BTO based on its limited or practical way to exercise good placement of stuffs. Do note.