We currently have a loan on land with well & septic, and a partially completed residence. The borrower is living in a camper while he constructs the residence. He wants a refinance the current loan to get enough money to complete the residence. Do I have the following correct?

-- For HMDA, this would be reported as a Purchase (it would be completing the construction and be secured by the completed residence.)

-- For TRID, the Purpose of the loan would be Construction (it is not to purchase the property, and is not a refinance of the customer's current dwelling - the camper)

I am thinking "home improvement". If you have a partially constructed dwelling it is still a dwelling and finishing it would be improving it.

A partially constructed dwelling isn't a dwelling until it's completed....IMHO. I believe the OP has both the HMDA and TRID purposes correct.

Well, actually..looking back at the original post....you say they want to refinance the land. TRID cares about the dirt for the loan purpose, so i think you would have a TRID refi.

"Home improvement" is not one of the four choices available.

"Refinance" comes before "construction" in the hierarchy of options under § 1026.37(a)(9), so you use "refinance," but only if the transaction will be a refinancing under § 1026.20(a).

If it's not a refinancing under that definition, the next option under § 1026.37(a)(9) is "Construction."

So it appears that the key question here is whether you're doing a § 1026.20(a) refinancing or not.

But for HMDA, a purchase.

The house is not complete, and the customer is not living in it yet, so is it considered a "dwelling" at this point? And does that matter as far as TRID goes - is it still a "Refinance" based on the fact that we are replacing one obligation to be secured by another obligation?

For HMDA, until a house is completed, you are still constructing it, so a loan (that contains the permanent financing portion) to finish construction of a dwelling is a purchase. As John said, if it meets the 1026.20(a) definition of a refinancing, then you have a TRID refi. If not, you have a TRID construction loan. As stated above, TRID cares about the dirt securing the loan when it comes to picking a loan purpose.

I was answering for the HMDA portion and did not read it would be the perm loan. Yes purchase, I was inaccurate sorry.

Concerning HMDA.
You said:
a partially completed residence. The borrower is living in a camper while he constructs the residence. He wants a refinance the current loan to get enough money to complete the residence.

If this is a temporary loan (not permanent financing, then it is still a construction loan and not HMDA reportable (yet). If you are providing permanent financing with this new loan, then it is a purchase (the perm phase of the construction loan).