How to design feng shui window of self-built house

What are the precautions in the design of self-built houses? The design of windows mainly depends on functional requirements, and good lighting and ventilation are considered. Comfortable lighting and ventilation are good feng shui. Generally speaking, there are the following rules:

1. The front window should be large and the back window should be small.

2. A functional space has at least two ventilation window.

3. The window with a view is big, and the window with a good view is also big.

4. Try to avoid opening windows for things that are traditionally taboo, such as graves.