I have been playing MMOs a looooong time and my first was Ultima Online (Lake Superior server chyah!) and one of the features it had that I think a lot of us can appreciate, particularly on populated servers was this...

Being able to look at the signpost and see an estimation of house condition (ie a pseudo description of how long till the house collapses) with some kind of clever terms for time left.

"This house is in perfect condition..." >30 days to collapse
"This house looks worn..." >20 days to collapse
"This house is in poor condition..." <10 days to collapse
"This house is a crack den..." <3 days to collapse

You get the point. Why not have an indicator that house hunters can go by like they did in UO? I think that would add a little spice to the housing market.