Coffee Shop Church
It functions like a regular coffee shop. It will be a little like a sanctuary in that it has symbols, messages, icons etc. that speak of faith. Even a Christian library and events board. Good coffee shops naturally become places where community happens and people gather. As a church it will also have regular services in the space, bible studies, and special events (film discussions, classes, etc.). preferably there would be a meeting room that anyone could use and the rectors office would be visible (though he would often work in the main space).
It needs to have good coffee of course. Baking and food would be good too.