Don’t fear third-party data
(1004 Desktop Limiting
Condition 3)
A common concern we hear from appraisers is
about using third-party data in desktop appraisals;
specifically, what is the risk to appraisers in relying
upon third-party data, and are appraisers expected
to validate such data?
It is important to recognize that appraisers have long
used third-party data routinely. For example, every
time an appraiser uses real estate multiple listing
services, they rely on photos, measurements, and
other data from a third party. Often appraisers use tax
records, surveys, inspection reports, satellite imagery,
and more — all from third parties. Appraisers can
use third-party data with confidence by analyzing its
reliability in the context of the body of information
available in the normal course of business.
Limiting Condition 3 from Form 1004 Desktop sets
forth the same concept. It says:
“The appraiser has relied on data provided
by third parties in this appraisal report. Such
data may include, but is not limited to, flood
maps, multiple listing real estate services,
tax assessment records, public land records,
satellite imagery, virtual street views, property
data services, surveys, engineering reports, and
property data aggregations. After examination
of the data and data sources, the appraiser has
used only the data he or she considers reliable.
The appraiser assumes there are no material
omissions and makes no guarantees, express or
implied, regarding the accuracy of this data.”
what a cesspool of poor appraisal practice...anyways, reliable has nothing to do with credible