I know pricing questions are a no no. This is me of a question as to if this guy is charging fairly. The guy building the building is a friend of mine and asked me to find out. I haven't dealt with an architect on a cost basis so I don't really know. He is wanting 6% of the total building cost. He designed the building but did not provide any blue prints for the mechanicals. He said the electrician/plumber/hvac guys can come up with their own plans.