If you're looking for a source (although "Randy said..." should be enough for any examiner
)
Federal Register / Vol. 62, No. 141 / Wednesday, July 23, 1997, Pg 39525, Interagency Q&A
8. If a borrower offers a note on a
single family dwelling as collateral for
a personal loan but the lender does not
take a security interest in the dwelling
itself, is this a ‘‘designated loan’’?
Answer: No. A designated loan is a
loan secured by a building or mobile
home. In this example, the lender did
not take a security interest in the
building, therefore, the loan is not a
‘‘designated loan."
If you have the deed of trust as well, you will as designated loans mean "a loan secured by a building or mobile home that is located or to be located in a special flood hazard area in which flood insurance is available under the Act."
If it is in a SFHA from a safety and soundness point the bank may consider (or should have) requiring some coverage.