Cost to add third story in NY

[Mary Schr]

Hi,

I went through the process of vetting the feasibility for adding a third story to my exist two family. The department of buildings said it was allowed (I went to the Queens department of buildings with an architect—they said it would be a third story with a dormer).

What is the usual cost for adding a third story?  I have been quoted anything from 100,000 to 200,000.  It’s not large in terms of square footage (850 square foot apartment with one bedroom).  Any insight or thoughts on this?