We want to add home prices and rent, but that is really expensive data unfortunately. If this has legs, we may be able to justify paying for the Zillow API or something similar. We do plan on adding affiliate links to realtors in that city, although that's not nearly as helpful.

There's also an entire "Explore" section of this site we're working on once the database reaches a higher level of maturity. We want to do all the filtering you're mentioning.

Great comment, thanks!

We just added average home and rent cost for the U.S.—looking into international options.