Housing Market Lab

Why are homes so expensive?

Interest rates set by the Fed ripple all the way to your monthly mortgage payment. See how rates, incomes and supply decide what a home costs — and what a family can afford.

1. Can this family afford this home?

Higher rates shrink what you can afford

Uses the common guideline that housing costs should stay under 28% of gross income. Not financial advice.

2. What moves home prices?

A stylized model. In the real world, housing supply responds slowly — it can take years to build — so demand shocks hit prices first.

Connecting to the big picture

When the Fed raises its policy rate, 10-year Treasury yields and mortgage rates usually rise too. In 2022 mortgage rates jumped from about 3% to over 7%, cutting how much a typical family could borrow by roughly a third.

Loose lending and low rates fueled the 2002–2006 housing bubble; when it burst, it triggered the 2008 financial crisis. Replay it →