Beyond that, the trends of neighborhood properties comparable to the property being appraised are meaningless outside the context of the overall trends in a larger market are, be that region, county, city or borough.
That is the whole point, to get appraisers to identify the trends for the subject immediate area of the comps used for the subject, differentiated from larger market /geo area overall trends. Since the loan is being made on this one subject property which has a specific location and influences of that location, that is their main interest, the rest is background noise. Appraisers pay far too much attention to generic trends, what the median value is in a county, the trend of the market for past 5 years etc. Do buyers and sellers really care about that? They have a general idea unless they are idiiots about the market, they along with our lender and a HS student can log on to Zillow or any RE website and get that generic trend information for a county or 5 year history or similar. We are no longer needed for that, though it's helpful to provide it for contest if you think it's relevant. What we are needed for is to identify and present in context the immediate influence trends around our subject that affect its marketability and appeal, from a multide of sources including speaking to RE agents and market particpants and analyzing the relevant transactions for terms and charcteristics, the very thing Zillow and the other generic data sources available on a smart phone can't provide