Why the number of cameras per house differs
There is no standard number of cameras that fits every home. A detached house with one front door and a compact backyard requires a different approach than a corner house with driveway, gate, and side path. The goal is not to install as many cameras as possible, but to precisely capture the spots where someone logically comes onto the property.
Therefore, we first look at entrances, walking routes, and sightlines. A camera above the front door often provides recognition, while a camera aimed at the garden or driveway mainly gives an overview. You should not mix those functions together, because a wide overview image is not always suitable for clearly seeing faces or license plates.

