From the HMDA Getting It Right Guide (under property location):
4(a)(9) Property location.
1. Property location—multiple
properties (home improvement/
refinance of home improvement).
For a home improvement loan, an
institution reports the property being
improved. If more than one property is
being improved, the institution reports
the location of one of the properties or
reports the loan using multiple entries
on its HMDA/LAR (with unique identi-
fiers) and allocating the loan amount
among the properties.
2. Property location—multiple properties
(home purchase/refinance
of home purchase). For a home
purchase loan, an institution reports
the property taken as security. If an
institution takes more than one property
as security, the institution reports
the location of the property being purchased
if there is just one. If the loan
is to purchase multiple properties and
is secured by multiple properties, the
institution reports the location of one
of the properties or reports the loan
using multiple entries on its HMDA/
LAR (with unique identifiers) and allocating
the loan amount among the
properties.
3. Property location—loans purchased
from another institution.
The requirement to report the property
location by census tract in a metropolitan
area where the institution has
a home or branch office applies not
only to loan applications and originations
but also to loans purchased
from another institution. This includes
loans purchased from an institution
that did not have a home or branch
office in that metropolitan area and
did not collect the property-location
information.
4. Property location—mobile or
manufactured home. If information
about the potential site of a mobile or
manufactured home is not available,
an institution reports using the code
for “not applicable.”