it really needs a demo page. I'm not in the market for a house right now, so i don't really want to fill my email data in as i think i'll probably get spammed.

otherwise... you may be ahead of the curve... i think services like zoopla and rightmove and this can only go so far because the UGC is generally terrible. There are certainly estate agents that are more digitally inclined such as themodernhouse.net and http://www.urbanspaces.co.uk/ but to really tackle this problem you have to be an estate agent rather than a 3rd party tool to other estate agents.