Is the column structural? Examining the photos from different 'what ifs' perspectives, I would say they are structural.

First, it would be difficult to install what appears to be a one piece fiberglass column around a structural post.

Second, if the roof is a cantilevered truss, why would a builder install a header as deep as it appears...sure reduces the street appeal by nearly hiding the tops of the windows and door. If I were building it, I would want the column capitals directly under the dentals.

Third, if the columns are non-structural, why so many? Is the builder totally oblivious to 'curb appeal'. The number of columns dwarfs the house...I would only install 4 at max (if non-structural).

Fourth, are those false dormers, or bedrooms upstairs? Sure looks like the dormers extend to about the location of the header above the columns. If there is floor load in these dormers, then the columns would be structural.

Fifth, need to know what the roof framing is. If 'stick', then most definitely the columns are structural regardless of what the dormers are.

Personally, buyers should of a new house should be entitled to a set of plans. Makes me wonder what else the builder is trying to hide. By the way, building inspection records are public information.