I agree ACBbank, but you have to be a little more careful in your determination for HI loans then you do for a purchase or refinancing. The poster said it qualified as a HMDA loan and I based the answer on that. If the improvements were done to the residential portion then it is HI regardless of square footage or income production. And if the improvements were something that improved the entire structure, such as replacing the heating system, it is HI if the structure is primarily residential.
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The opinions expressed are mine and they are not to be taken as legal advice.