Answer:
The type of loan - commercial or consumer - does not matter. It is all whether the collateral is a dwelling as defined in Regulation B. If it is no longer a residential structure, then the appraisal requirement will not apply.
(2) Dwelling. The term "dwelling" means a residential structure that contains one to four units whether or not that structure is attached to real property. The term includes, but is not limited to, an individual condominium or cooperative unit, and a mobile or other manufactured home.