The basement mostly is used like warehouse for old stuff and he is forgotten and neglected. This area remind like that because the owners don’t have money or the are just not so creative. To make the basement an amazing place is not so simple, because it’s large area in the house. But with little time every day and great imagination, slowly you can renovate your house basement and make your new favorite place in the home.
The basements have lack of light and they need good isolation because they are mostly underground rooms. So before planning the interior design you need to solve the problem with the light and removing of the moisture.
If you want to make this space in to new additional floor, the area for daily activities need to be in the more bright space in the floor. The bedroom and the bathroom need to have small window for fresh air.
Depend of the size of the basement the possibilities are large. If the space is big you can design it in to home cinema, bowling alley and if is small into private gym, and many other creative ideas.
This space is great for hanging out with the friends and enjoy in quality time far away from the noise in the home. Great choice is to make the basement in to work room or some small gallery and library.