> I need a minimum number of people around, preferably people with whom I am doing some work, to get anything done.
Doesn't seem like you need an office for that, though? You can invite your coworkers over to your home, go to a coffeeshop/bar, even the library. I went to the local library the other day and it was effectively vacant. I bet they would welcome your group with open arms to find some use for the space.
Work from home doesn’t mean work from home, it means work from anywhere.