Residential crash is potentially already upon us, at least in the outskirts (East Bay for me). We've had our house on the market for over a month now, and nobody else in the neighborhood is selling either. Big changes from only 3 months ago, when sellers were closing in days.
Turns out prices have to go down when the fed doubles rates. By my math, a 30% correction is needed to make up the difference in terms of monthly affordability - meaning a $500k house at 6% is the same as a $750k house at 3%.
If the average person is buying a house to hold for 7 years - and you're expecting only 2 years to be at elevated rates before you can refinance at 3% or less - then you'll settle for a lot less than a 30% correction.
Does your 30% figure doesn't include property tax - or mortgage interest deduction? If you include those - I'd imagine you're looking at a <20% correction.