Fred Harrison has a theory called the "18 year land cycle", and claims to have correctly predicted the housing crash in 2008 and one in the 1990s:
https://www.dailymail.co.uk/yourmoney/property/article-12446057/Why-house-prices-set-soar-two-years-CRASH-claims-expert-accurately-predicted-property-market-collapse-2008-1990s.html
He's currently predicting we'll see a major real estate crash in 2026.
This market resolves YES if three conditions are held:
Real estate prices peak in 2026
Real estate prices at the end of 2026 are below the peak
Real estate prices by the end of 2027 have declined by at least 15% relative to the 2026 peak
The index we will use to define "real estate prices" is case-shiller:
https://fred.stlouisfed.org/series/CSUSHPINSA
Hard to say for sure if a full crash is coming in 2026, but trends point more toward a correction than a collapse. Rising rates and affordability issues will play a big role. I usually check what the top real estate agents in San Diego https://sandiegorealtorslist.com/ are saying, since that market reacts fast to shifts. Their insights often give a good idea of what’s coming nationwide.