Builder Presale A Valid Comparable For Appraisal?

[residentialguy]

3. A reasonable time was allowed for exposure in the open
market.

Again, with new construction, it's a different market and are selling the house by models. These are exposed to the market typically longer than with an existing construction. Many appraisers don't realize this, but they need to in order to be competent in appraising new construction.