I've made a few cake pops over the last couple of years - mostly at Christmas time - and I think these would be a good house-warming gift.
Here's a couple from Vypassetti Cake Pops in the USA:
Here's one with a roof made from what looks like some sort of wafer - it's from Lil' Cutie Pops in New Jersey USA:
Whilst not strictly speaking a "house", Big Ben however, is part of the Houses of Parliament (see what I did there) and this one is from KC Bakes (I like the double-decker bus too).
I found these ones at From Rosie's Kitchen in England and she did make them for a house-warming party:
Make sure you check out Rosie's facebook page as she has lots of great cake pops on there.