I live in a mansion, which is just another term for a very large house.
Oooh! That sounds nice!! Is it hard to maintain such a huge house?
Yes, it is very hard. I guess if it was any bigger it would be a palace.
I'd sure love to live in a palace, but I'd happily take a mansion! I know that you said it's bigger than a standard house, but how much bigger than a house is a mansion?
Hm I'm not really sure of the exact size. There are even some that are very old and once began as a castle.
How interesting! What else can you tell me about living in a mansion? 
Well the term came from manor which was given to a lord to stay there.
That makes me think of old English history with all of their lords and ladies. Is manor an English term?