I totally understand the grief you are feeling. The space is important to me as well.

My long term T changed locations twice. The first time she sent from having a rented location to adding a second location with a home office. I switched to her home office. She was there for a couple of years before selling her home. So we went back to the rented building in a different office. It wa ar relly hard transition especially since I knew she was moving 2 hours away and feared she would retire quickly there after.