A very important criterion is the character of the owner of the house. Depending on the temperament, different styles of the interior, or their elements, will be apt. Conservatives are better off sticking to styles with a classic mood, without too bold contrasts. Practical people will be comfortable in a functional high-tech style - simple, but saturated with innovations.

In any case, it is best to pre-plan how your interior will look like even before the start of repair work. You can use the 3d floor plan for this https://www.spotlessagency.com/blog/what-is-a-3d-floor-plan

This floor plan contains pieces of furniture that help you understand the size of the room and its functionality.