Usually, the grave-sweeping ceremony is carried out first.
Before construction, the developer will generally negotiate with the descendants of the tomb owner to do the tomb moving ceremony, and generally ask the teacher for on-site guidance. Moreover, most of the remains have been removed, instead of building houses directly on the graves. Of course, some graves will be forgotten because of too long time or no descendants, so they can only be pressed under the houses.
If there are many households, the sun is not afraid.
Now there are generally more than 1000 people in the community. Because there are many people and strong yang, naturally they are not afraid of these yin things. Folks often say: "There is no place where there is no shade and there is no place where there is no sun", and the location of the tomb is not too bad. It is a place selected after decades of feng shui survey, so living in such a place is often smooth. Of course, mass graves will be ruled out, because they are not about feng shui, or usually the feng shui is very poor, so they will be regarded as mass graves.
If a family lives alone on a grave, remember not to live there.
However, it is worth noting that in rural areas, most people live in single-family houses. In this case, if there is a grave under the house, you need to pay attention. This kind of situation must be seen by a Feng Shui master, because a single-family house is easy to become a haunted house because of its lack of yang. So this kind of house must not be occupied at will.