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Underappraisal Disparities and Time Adjustments to Comparable Sales Prices in Mortgage Appraisals

Mejappz

Elite Member
Joined
Dec 16, 2005
Professional Status
Certified Residential Appraiser
State
Florida
I haven't read it yet (it's 47 pages), but I predicted this years ago. Cheap and fast options often come with consequences. I'll be curious to see if there's any mention of AMCs or lenders—after all, they’re responsible for ordering the appraisals.


Mortgage appraisal accuracy became a major concern following the global financial crisis in the late 2000s. Legislative standards and industry guidance have adjusted professional practices to improve inefficiencies and inequities. Nonetheless, systematic misvaluation continues to be documented for single-family residential homes, which creates problems when appraisals are used by financial lenders to gauge potential risk and an asset’s worth. Real estate prices have been appreciating continuously over the last dozen years, which means comparable sales and benchmark indices merit revisions to reflect fair market conditions, but it only happens for around 10% of properties. We sample from a uniform appraisal database of over 45 million records from “subject” single-family properties and 228 million records from “comparable” homes covering the entire United States from 2015 through 2023. This paper asks whether time adjustments are made, if they improve fair market measurements, and whether they fix neighborhood appraisal disparities. Results show these readily available corrections are underutilized, too small, applied less frequently in minority areas, and cure half of initial underappraisals. The limited usage of time adjustment accounts for as much as 67% of the underappraisal bias in Black neighborhoods and 49% of the disparity in Hispanic neighborhoods.


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I have been making market conditions adjustments in real estate appraisals, when warranted, since 1987. It is a testament to the veracity of the GSEs and regulators that they are just now discovering that there is such a thing. Really, who can be surprised by these findings? We would have gone another 40 years without a word if politics had not entered the appraisal methods arena.
 
my best appraisals are the ones with no adjustments... :unsure: :ROFLMAO:
 
I haven't read it yet (it's 47 pages), but I predicted this years ago. Cheap and fast options often come with consequences. I'll be curious to see if there's any mention of AMCs or lenders—after all, they’re responsible for ordering the appraisals.


Mortgage appraisal accuracy became a major concern following the global financial crisis in the late 2000s. Legislative standards and industry guidance have adjusted professional practices to improve inefficiencies and inequities. Nonetheless, systematic misvaluation continues to be documented for single-family residential homes, which creates problems when appraisals are used by financial lenders to gauge potential risk and an asset’s worth. Real estate prices have been appreciating continuously over the last dozen years, which means comparable sales and benchmark indices merit revisions to reflect fair market conditions, but it only happens for around 10% of properties. We sample from a uniform appraisal database of over 45 million records from “subject” single-family properties and 228 million records from “comparable” homes covering the entire United States from 2015 through 2023. This paper asks whether time adjustments are made, if they improve fair market measurements, and whether they fix neighborhood appraisal disparities. Results show these readily available corrections are underutilized, too small, applied less frequently in minority areas, and cure half of initial underappraisals. The limited usage of time adjustment accounts for as much as 67% of the underappraisal bias in Black neighborhoods and 49% of the disparity in Hispanic neighborhoods.


View attachment 94169

What the graphic shows is that the national year-over-year house price growth was around 5% year but the reason that only 10-15% of appraisals had time adjustments during the 2015-2020 period is because prices were not increasing in majority of the country during that time frame. Prices increased rapidly throughout most of the country during the 2021-2022 pandemic years.

What it shows is that prices were increasing at a not insignificant rate in 10-15% of the country. It's not all property prices were increasing 5% per year but only 10%-15% of appraisals chose to make adjustments, which is what they are trying to imply.
 
What the graphic shows is that the national year-over-year house price growth was around 5% year but the reason that only 10-15% of appraisals had time adjustments during the 2015-2020 period is because prices were not increasing in majority of the country during that time frame. Prices increased rapidly throughout most of the country during the 2021-2022 pandemic years.

What it shows is that prices were increasing at a not insignificant rate in 10-15% of the country. It's not all property prices were increasing 5% per year but only 10%-15% of appraisals chose to make adjustments, which is what they are trying to imply.
And they included in stats based on minority ownership. Are there really appraiser's making chaning market conditions adjustments when warranted unless the borrower is a minority...I'm skeptical to say the least.
 
And they included in stats based on minority ownership. Are there really appraiser's making chaning market conditions adjustments when warranted unless the borrower is a minority...I'm skeptical to say the least.

I dunno. Probably not.
 
I didn't read it either, but I searched and counted the word "bias" 15 times. So It is mostly likely, similar to other PAVE-oriented studies and tries to prove a task it was sent to accomplish, rather than be fully objective about the purpose and function of an appraisal report in the mortgage lending industry.

Yesterday I was researching basic economic numbers (GDP, per capital income, etc.) and I came across this (its like James Carville saying....'drag a twenty dollar bill through a trailer park and you never know what you'll find'....If you search on the word Trillion, you find an article by Time:

The Top 1% of Americans Have Taken $50 Trillion From the Bottom 90%—And That’s Made the U.S. Less Secure


So [Steve Martin] "Excuse Me!" if I come in low on 3 or 4% of purchase appraisals.....and the buyer and seller work it out 99% of the time to close the transaction.
 
I am working on an older house with small acreage rural setting. I just searched the entire county for the past year had it gave me ONE comp...one outside of the city subdivisions. I checked sales for the previous year (actually 11 months prior) and got 8 so I went back another six months and got 18 ... 1 in 12 months vs 24 in the previous 17 months. Can I support a drop in prices? No. Can I support an increase? No. I have to pull up the city sales in that county to estimate perhaps an increase of 3% during the previous 11 months. Is that really meaningful?
 
I spent another 30-seconds on the Study and found their R^2's:

N 987,797...........987,797...........987,797...........987,797..........987,797...........987,797
adj. R2 0.029..........0.042................0.042...............0.025..............0.036...............0.036

Really?
 
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