Even though some down payments are borrowed, it would take a large, and historically most unusual, fall in home prices to wipe out a significant part of home equity. Many of those who purchased their residence more than a year ago have equity buffers in their homes adequate to withstand any price decline other than a very deep one.
Alan GreenspanA decline in the national housing price level would need to be substantial to trigger a significant rise in foreclosures, because the vast majority of homeowners have built up substantial equity in their homes despite large mortgage-market financed withdrawals of home equity in recent years.
Alan Greenspan