The Center for Investigate Reporting went through 31 million records created by the Home Mortgage Disclosure Act and found disparities:

The analysis – independently reviewed and confirmed by The Associated Press – showed black applicants were turned away at significantly higher rates than whites in 48 cities, Latinos in 25, Asians in nine and Native Americans in three. In Washington, D.C., the nation’s capital, Reveal found all four groups were significantly more likely to be denied a home loan than whites.

Reveal’s analysis included all records publicly available under the Home Mortgage Disclosure Act, covering nearly every time an American tried to buy a home with a conventional mortgage in 2015 and 2016. It controlled for nine economic and social factors, including an applicant’s income, the amount of the loan, the ratio of the size of the loan to the applicant’s income and the type of lender, as well as the racial makeup and median income of the neighborhood where the person wanted to buy property.

Credit score was not included because that information is not publicly available. That’s because lenders have deflected attempts to force them to report that data to the government, arguing it would not be useful in identifying discrimination. 

This is an ongoing pattern. While I was in graduate school, I had a little experience working with the millions of HMDA records since my advisor, Rich Williams, had published on the topic. For example, see his 2005 article in Social Problems.

And lest we think that this is just about applicants of different races or ethnicities with equal standing receiving different treatment (generally the point of audit studies), it was even worse before the housing bubble burst:

In 2006, at the height of the boom, black and Hispanic families making more than $200,000 a year were more likely on average to be given a subprime loan than a white family making less than $30,000 a year…

Relative to comparable white applicants, and controlling for geographic factors, blacks were 2.8 times more likely to be denied for a loan, and Latinos were two times more likely. When they were approved, blacks and Latinos were 2.4 times more likely to receive a subprime loan than white applicants. The higher up the income ladder you compare white applicants and minorities, the wider this subprime disparity grows.

Or another study:

According to the study’s authors, the economists Patrick Bayer, Fernando Ferreira, and Stephen L. Ross, race and ethnicity were among two of the key factors that determined whether or not a borrower would end up with a high-cost loan, when all other variables were held equal. According to them, even after controlling for general risk considerations, such as credit score, loan-to-value ratio, subordinate liens, and debt-to-income ratios, Hispanic Americans are 78 percent more likely to be given a high-cost mortgage, and black Americans are 105 percent more likely.

Or see the $175 million fine leveled at Wells Fargo for steering minorities to worse loans.

This reminds of the conclusion of American Apartheid where the sociologists Doug Massey and Nancy Denton argue that Americans lack the will to enforce existing laws about housing discrimination. Even with a variety of laws and regulations intended to eliminate discrimination in housing, there is not a completely level playing level field.