Answer : This is a difficult question, as the answer will be different based on where you live/study. It would depend on what kind of school you are looking for. Some schools offer an Associate’s degree, others offer Bachelors of Arts or Bachelor's degrees in General Design (with the Interior Design concentration), and still other design schools provide Certificate study programs that focus on building design with an interior design emphasis. The best thing to do is speak to your guidance counselor about what types of courses they recommend, then research those colleges online by visiting their website and complete their general application to see if they fit your requirements and interests.