Setting up a Community Center lot in another town is tricky. If you plan on building your own, you'll need the basic one and all 3 versions (maker, marketplace, community garden). I didn't want to spend the time, so I added the ones from Evergreen Harbor to my library, and I added all 3 types of the one lot that I chose. When the maker lot was voted in, the whole community center vanished! But the maker lot appeared in my library (it hadn't shown up before), so I put it in.
I hope it works better in Evergreen Harbor. Anyway, it can be made to work in other towns, but might be tricky.