With out actually looking at your file:
I'd report it on both the HMDA LAR (Home Purchase, 1-4 Family) and on the CRA Small Business Register (Type 01, Rev Code 3).
Same AppIds,same amounts.
No - the correct reporting for the CRA LR will depend on the Call Code assigned to this loan. If the Call Code is 01e,(secured by non-farm/non-residential property) then it is reported on the CRA LR presuming the loan amount is $1Million or less. You are not allowed to double report a loan on CRA and HMDA with the exception of multi-family affordable dwelling loans that can be reported on HMDA and as Community Development.
(Caveat here about how a Retirement Home is supposed to be reported according to the Call Report instructions and the CRA instructions which tie directly in to the Call Report instructions. A Retirement Home is considered non-farm/non-residential on the Call Report and thus should be reported on the CRA LR if $1Million or less, and should also be reported on HMDA if used for purchse, refinance or improvement. However, I've yet to find a regulatory agency that will actually look at this issue and I get tired of everyone following the party line about no double HMDA/CRA reporting. Follow the dang regulation and stop making stuff up!) If the Call Code is 01a (construction, land development and other land loans), then the loan cannot be reported on the CRA LR, and may or may not be reportable on HMDA.
If the Call Code is 1C2(a) or 1C2(b),(secured by 1-4 family residential property) then you would not report it on the CRA LR, and would have to consider reporting on HMDA.
Remember two things about all of this:
1. Neither CRA nor HMDA should determine the correct Call Report code. The loan should be classified correctly, and you may need to contact your regulatory agency for guidance if you are not sure. However, the Call Report code does determine what is reported on the CRA LR, but does not have the same effect on HMDA.
2. You do not have to simply rely on square footage to determine primary use. You can also rely upon revenue generated by the residential vs. the commercial. I would be willing to venture a guess that the commercial space would generate greater revenue than the residential.