Well, that is strange then. I know when I built my cemetary, I had trouble at first and had to go back a couple of times and it finally worked, but not sure why yours is not working for a community lot.
When you click destination party and it goes into map view, there is no tag on your property that you built? Is the tag a park bench or house icon? Maybe the game just gives you the standard in game choices, but I thought you could use your own. It would be a shame not to be able to use your own, but I have made a wedding chapel and used it before. I have decided with this game, it is hard to predict anything anymore, lol. I wish I could be more help. Maybe someone else has some ideas about it.