[l2ridehd]

It is not an exact science. I use the county web sites as they list the selling price, the sq footage of the home and the lot, assessed valuations and from the footprint you can see if there are added things like birdcages. I throw out the top and bottom 5% because once you look at the information there are things that you know something strange happened. It was sold furnished, had a new Lexus included, was sold to a family member, etc. I focus on only designer homes as that was what I was buying. Then go back to the listing because there are many many things that impact price. Over sized garage value of 20K, golf car garage 18K, granite 6K, all tile floors 7K, birdcage $22 a square foot, and many others. So take the selling price, take a percentage based on lot vs building valuation (even the county assigns higher value to premium lots), always use selling price vs assessed value, only use the % from valuation to determine the split, divide the home value by square footage, divide the lot value by square footage and you have a price per square foot. I built a spread sheet with many columns and formulas and it works for me because I built it. I shared it with another person once, but because they didn't build it, they had a 1000 questions. I would build my own if you think the process will help you.

As I said, not a science. But very valuable when looking at new homes to know what to pay, and very valuable to see trends.