Loss of jobs in a concentrated market and very high interest rates, i.e. 9-10%.
If rates go to 10% a large portion of people will not be able to afford a new home especially "starter" type housing for newly marrieds. But rates are not going to jump from 5%-10% over the next 60 days. It would take a few years to get there. Builders of these types of homes would be slowing down as demand slowed down. Not necessarily a drop in price as simply a slowdown in new construction.
With higher rates the demand will be met by the normal turnover of existing homes coming on the market through death, divorce, transfer etc etc.
A massive job loss in one market will cause prices to drop a fair amount.
Everything else is basic supply and demand.
Most traders on this board cannot understand that simple concept.
SteveD