Love husband but need space

Don't get me wrong. I absolutely love my husband but he is a packrat and thanks to my time in the military, I very much appreciate my own space for my stuff. Everything has its place and I'm very OCD about how my stuff is organized. Unfortunately, we live with my mom in law right now since she sold her home but we are looking at buying a house in Las Vegas once I complete my Juris Doctorate degree in our hometown. I was having a conversation with my supervisor a few weeks ago and he and his wife have separate rooms since she likes her room a certain way and he likes his a certain way. They have been happily married for almost 30 years, so clearly it works for them.