M. Leggett:
You have it reversed for financing purposes. The states, counties and cities use the various terms interchangably and really get everybody confused.
But for financing--if built to HUD code it is a manufactured home!! Nation wide, all lenders, and it is immaterial what a local government entity calls it.
For financing--if NOT built to HUD code it is NOT a manufactured home, no matter how much construction was done in the factory, whether 5% or 100%. If not built to HUD code it could be a modular, panelized home, kit home, factory built home, factory assembled home, industrialized home---anything except manufactured home.
So if your subject was built to HUD code then the lender wants to know about the certification label (metal tag at the left rear that states the home was built to HUD building code) and the data plate (AKA Certificate of Complance, a letter sized piece of paper with a map of the USA that is inside the home somewhere).
If it was not built to HUD code, then whatever the local government entity requires is what the lender wants to know about.
Remember we are talking about financing requirements---not local building, zoning, subdivision CC&RS, home owner, dealer, assessment, taxation, etc terms.
For financing it is simple--HUD code equals manufactured housing. Pre June 15, 1976 mobile homes equals mobile homes, which has special problems.
Non-HUD code (excluding mobile homes) equals site built housing for financing.
So if you have a home originally constructed to a site built home building code--there was no need for the "mobile home addendum" (which I hate and is totally unneccessary!). Most of the questions on it are underwriter responsibilities, not an appraiser's.