It depends on what period of time you are looking at, see "Average Price Per Sqft for Homes in Kelseyville" at this link:
http://www.trulia.com/real_estate/Kelseyville ... more
However the current average is remaining around the $120K range for a 1000-1500 SF basic home.
If it's a Fannie Mae Home Path property then a Fannie Mae renovation loan is an option as well as the FHA 203k renovation loan. If it isn't a Home Path property ... more