Hi Ol Gnome,
For selling a home, I would probably suggest listing on a specialized site specifically for home sales.
It can't hurt to put it on your own domain, except, how many people do you think will see it? But you could also link to it from the specialized site(listing)
If your host allows it, I would probably suggest creating a sub-domain and putting the page there.
eg)
http://house.gnomeshollow.com or similar