I mean... it's kinda bad:
What I see here is a basically a King/Queen with a slightly higher coin production at the cost of 500 (freaking 500!) happiness.
A cultural building from the Colonial Age has up to 75 happiness per square. So the Haunted House isn't really 2x2 building - it's actually 7+4 = 11 squares large!
Even in the PMA where we get roughly 110 happiness per square that still equals about 9 squares for the haunted house.
So (even in PMA) it's roughly only half as effective as a king. And a king is already "kinda crappy" (ever since shrines were introduced).
Any chance it's values are still subject to corrections/adjustments?
I don't see any value in it with that high unhappiness. I think it shouldn't be more than -100.
And how about some twists or new ideas to make things more diverse?
Therefore I suggest to increase the Haunted House' coin output by ~60-75% while also making it untargetable for motivation through visiting players (it doesn't give unhappiness for no reason, nobody wants to touch it/go there. And well, in the first place, nobody lives there that could be motivated).
That attribute imho suits the atmosphere/theme quite well.
While we're at it, why does it need a road again?