@Olga Levin
Bill,
Thanks for your input.
Just curious, why would it be illegal? Seems like it could be a tool to fix a lot of variation in this industry?
Olga,
My opinion is that a national standard for adjustments would take the objectivity right out of the appraisal analysis, for example a 2 car garage in Florida somewhere with a $120,000 house would not be worth the same as a two car garage at a house in La Jolla, CA at a property priced at $2,500,000. Plus, land costs / values and construction costs / materials and labor are dramatically different throughout the country, so a set standard wouldn't apply.
For the sake of argument here, I refer to a term that I use quite a bit which is a "test of reasonableness". Is it reasonable that a Buyer would pay $20,000 more for a home with a 2 car attached garage vs. the same home with no garage, quite possibly depending on the market area, would a reasonable Buyer pay $50,000 more for that same house with the two car garages, probably not if its the aforementioned $120,000 house in FLA and that same 2 car garage could be built new for $18,000...but in La Jolla, CA that $50,000 could be a deal and an able and willing Buyer would considered the pricing difference more than reasonable.
Hope that helps some, and...just my opinion !
Bill