Estimating property value
I'm wondering how everybody estimates property values of homes. I've been using the average of the 3 lowest and 3 highest comps in a one mile radius if possible but I'm finding that in some areas that is a big gap and I'm trying to find the most accurate way of estimating value short of calling a Realestate agent or appraiser for every deal I analyze. Are there any investors in or around Phoenix that would be willing to help me a little with this I know a little bit about each area but I don't have extensive knowledge of all of the areas. Please share your methods and/or any tips you can think of for getting a more accurate estimated value.