Answer : Like any major project or task, framing your interior design in the beginning can make things go smoother. The first question you should ask when designing an interior is what exterior are you starting with?
If it's a red brick facade then where would a green paint make sense inside? You want to be able to execute the color and style that brings life outside.
If there is minimal light on the exterior, luxury living on the inside may feel more like being buried alive. You don't have to limit your decorations though; just find new ways of bringing fresh air into your home with windows or skylights for example.