April 2021 Home Prices Led To Least Affordable Housing Since Late 2018 – NMP Skip to main content

April 2021 Home Prices Led To Least Affordable Housing Since Late 2018

Jun 08, 2021
Photo of coins stacking up next to a wooden carving of a house.
Director of Events

Black Knight, Inc. reported that April 2021 saw the highest annual home price growth rate since the mid-1990s.

KEY TAKEAWAYS
  • There have been 17 consecutive months of home price increases.
  • Number of active for-sale listings fell 53% in April 2021.
  • It takes 20.5% of the median income to be able to afford monthly payments on a median-price home.

Black Knight, Inc. Data and Analysis division released its latest Mortgage Monitor Report. According to the latest data from the report, Black Knight Data & Analytics president Ben Graboske, stated that a dwindling inventory of homes for sale is pushing home price growth rates to previously unseen levels.

“Home prices grew at 14.8% on an annual basis in April,” said Graboske. “That's the highest annual home price growth rate we've ever seen – and Black Knight's been tracking the metric for almost 30 years now. Single-family homes saw the greatest gains, with prices up 15.6% from last April, also an all-time high, while condo prices are up 10%. Driving this growth are two key elements: historically low interest rates and – more acutely – the lack of available for-sale inventory. The total number of active listings was down 60% from the 2017 to 2019 average for April. It's not getting any better, either. Data from our Collateral Analytics group showed there was two months' worth of single-family inventory nationwide in March, the lowest share on record and trending downward. In fact, there were 26% fewer newly listed properties in April as compared to pre-pandemic seasonal levels.”

“Of course, such aggressive home price growth has had an impact on affordability levels, even with interest rates back under 3% and within roughly a quarter point of historic lows,” added Graboske. “Entering June, the share of the median income needed to make the monthly payments on the median-priced home had risen to 20.5%. While still more affordable than the 25-year average of 23.6%, housing has surpassed its 5-year average of 20.1% even with interest rates back below 3%. In recent years, 20.5% has roughly been the tipping point at which appreciation begins to decelerate, but given the severity of inventory shortages, home prices have – at least for now – continued to sharply accelerate even in the face of tightening affordability.”

The report also explored example scenarios of how affordability would be affected if home prices continue to rise at their current rate in different mortgage rate environments. The company found that if home price appreciation continues at its current rate and 30-year rates slowly rise to 3.5% by the end of 2022, the national payment-to-income ratio would hit 21.6% by the end of this year and 25% by 2022.

Additionally, if rates remain low over the next 18 months, the current rate of home price growth would not be sustainable, according to Black Knight.

“At 4% by the end of 2022, affordability would hit 22% by the end of this year and 26.7% by the end of 2022. If home values continued to rise at their current rate and 30-year rates rose to 4.5% by the end of next year – still historically low – the payment-to-income ratio would rise to 22.5% by the end of this year and climb above 28% by the end of 2022,” according to the report. 

Though, Black Knight believes this would not be indicative of actual market behavior because rising rates and tightening affordability may ultimately result in deceleration of home price growth below today's levels. 

About the author
Director of Events
Navi Persaud is Director of Events at NMP.
Published
Jun 08, 2021
Jobs Report Comes In Weak After Mortgage Rates Surge

Employers added just 29,000 jobs in September, sending Treasury yields lower and offering a potential counterweight to the recent rise in mortgage rates

Oct 02, 2026
Price Cuts Hit Four-Year High As Mortgage Rates Top 7%

More than one in five listings took a price cut in September, but pending sales still posted their sharpest annual decline since March 2025

Oct 01, 2026
Serious Mortgage Delinquencies Rise 19% After Five Months Of Improvement

ICE data shows 574,000 mortgages were at least 90 days past due in August, while early-stage delinquencies remained below year-ago levels

Sep 29, 2026
Smaller Down Payments Give Buyers More Room, But Rates Limit The Savings

The typical down payment fell 9% from a year ago, while shifting market conditions are giving originators different affordability conversations across the country

Sep 25, 2026
Mortgage Rates Break 7% Just As Builders Find A Way To Move Buyers

New-home sales rose 6.4% in August as builders cut prices, offered incentives, and sold more lower-priced homes. Now mortgage rates are moving against buyers again

Sep 25, 2026
Borrowers Want Digital Closings, But Some Originators Remain Hesitant

ServiceLink finds 45% of surveyed LOs cite borrower reluctance as a barrier, even though most recent buyers say digital options would influence their choice of mortgage provider

Sep 23, 2026