I would check out the following resource for appreciation value information.
You will find a lot of useful information there. Also , realtytrac can help with stats...
Go here: http://www.realtytrac.com/statsandtrends/md/anne-arundel-county/annapolis/?address=Annapolis%2C%20MD%20&parsed=1&ct=annapolis&cn=anne arundel county&stc=md
I hope this helps. Tom Hinz email@example.com www.shortsaletosell.com