For a partial zone, that do not have a structure within the partial zone, are we required to disclose & have a signed SFHD on file?

A SFHD is neither signed nor is it a disclosure - so I am unsure of your question.

Sorry- I am referring to the Notice to borrower of flood area.

208.25(i) Notice of special flood hazards and availability of Federal disaster relief assistance. When a member bank makes, increases, extends, or renews a loan secured by a building or a mobile home located or to be located in a special flood hazard area, the bank shall mail or deliver a written notice to the borrower and to the servicer in all cases whether or not flood insurance is available under the Act for the collateral securing the loan.

In this case then, flood insurance would NOT be required on the property since the existing structure is not affected and is not in the flood plain, correct? We have such a situation and we feel flood insurance is NOT required, nor would the Flood Disclosure Notice be required, based on the citation above.

If there are no structures in the SFHA, you are done.