If the house you are considering is empty, and you have a cooperative realtor, I guess that can drag some gear there and do your own testing. If it is that important to you, you may want to confine your search to empty houses and work with one accomodating realtor. I think that most people if they are selling their own home would find the request quite odd.
I realize that this is an audiophile site but there are so many important variables in buying a home that be wary of your priorities.
Even reviewers such as Art Dudley and Robert Harley, who use their homes as reviewing sites, have written extensively about modifications that they have to make to new homes for listening purposes. It is a lot easier to tweak a system or a room for listening purposes than to have to fix an HVAC system, fix a flooded basement with sewage, deal with termite damage, or any of the wonderful things that can go wrong with a new home purchase.
I realize that this is an audiophile site but there are so many important variables in buying a home that be wary of your priorities.
Even reviewers such as Art Dudley and Robert Harley, who use their homes as reviewing sites, have written extensively about modifications that they have to make to new homes for listening purposes. It is a lot easier to tweak a system or a room for listening purposes than to have to fix an HVAC system, fix a flooded basement with sewage, deal with termite damage, or any of the wonderful things that can go wrong with a new home purchase.