This was really fun and fast paced, kinda makes me wish getting to the church at the end were a little bit more challenging.
Also, one thing I'd recommend is adding a delete/sell option. Design freaks like me tend to change their minds on what they want their place to look like, or alternatively occupying an adjacent space by accident and being unable to undo it risks becoming frustrating.
Another thing I'd like to mention is that the music was cute, but it didn't seem to fit the vibe of a graveyard. Just something to consider for the future.
Anyway, loved it, would totally play a more elaborate version of this game, if you do end up working on it some more.