Can you go in law school with a degree interior design?

Yes, you can go to law school with a degree in interior design. A law school application doesn't require a specific undergraduate major. What matters most are your LSAT score, GPA, and the strength of your application overall (letters of recommendation, personal statement, etc.). Your interior design background might even be beneficial in some aspects of your legal career, perhaps if you pursue areas involving real estate or intellectual property related to design.