Everyone knows that as interest rates rise, real estate prices drop.  It is only natural.  If the current interest rate is 4% on a $300,000 loan, the monthly PI (Principle & Interest) payment is $1,432.25.  If the interest rate goes up to 7% and the average buyer can only afford a monthly payment of $1,432.25, then the maximum amount they can borrow goes down to $215,277.40.

This is affectively what has happened over the past year and a half, so why have prices continued to climb?  That’s a great question and can be explained by the extremely low inventory levels.  The level of inventory has been so low for so long that the principles of supply and demand have caused prices to increase dramatically. 

In other words, if interest rates hadn’t risen so much so fast, the average loan balance may have risen to $565,000.  That is what the borrowers could afford based on the current average monthly PI payment of $2,700 and an interest rate of only 4%.

The following chart shows the affect interest rates have on a borrowers ability to pay over the past 18 months.

Loan Balance	Interest Rate	Monthly PI Payment
$300,000.0 Read More...