Below is an excerpt for a post I did awhile ago called “What Cause’s Real Estate to Appreciate” Click on the title to see full post.

Interest Rates:
A one percent change in the mortgage financing rate can change the value of real estate by as much as 10%

A $300,000 mortgage financed at 5% for 30 years costs 1610.46 (Principle and interest)

So a monthly mortgage payment of 1610.46 at 6% for 30 years gives you a mortgage of $268,611.22 or 10% less.