Buildings generally face the balcony, but the balcony must be unenclosed and in the living room. Because the balcony is the place that receives the most yin and yang energy.
It is useless to talk about pi and so on. Feng shui is the two qi of yin and yang. It is completely meaningless to predict what happened based on the house plan and horoscopes. As long as you know the horoscope, you can take the test with just one horoscope. Otherwise, is there still a way to calculate the eight characters?