Is Housing Bubble Full of Hot Air?

Updated August 2026

The biggest question I get from small-time real investors is whether their favorite product, single-family homes, is on the verge of a housing bubble. That is potential bad news, of course. But it’s something you may want to know as home prices have risen (and flippers and others are reporting some huge profits that seem to be incapable of being sustained).

So what’s my best guess? And it’s only a guess.

First, some rationale behind what I think.

It wasn’t that long ago, only a few years ago, when we all assumed home prices would keep going up. But when they dropped to absolutely amazingly low levels, the race was on to buy and sell at a profit. Now, as we hear rumors that the party may be coming to an end, it’s worth asking: is the market overheating?

There are, however, some large and small indications that while prices may moderate, they are not going to seriously slip. The Federal Housing Finance Agency (FHFA) reported in the second quarter of 2013 that the serious delinquency rate for Fannie Mae and Freddie Mac mortgages had declined to just 2.8%, a clear sign that borrowers are stabilizing and foreclosure risks are falling.

All reports show that homes are still selling briskly. Demand remains strong. A major reason is that with limited home building and the large number of foreclosures or what are known as “underwater” homes has reduced supply. According to the U.S. Census Bureau, new home starts in 2013 were still just under one-third of the 2005 peak, a level not seen since the mid-1960s.

But remember that was a time when the U.S. population was less than two-thirds of what it is today. That demographic pressure only amplifies the imbalance between supply and demand. Even with rising mortgage rates, the Federal Reserve has noted that credit conditions remain relatively tight for lower-income borrowers, limiting competition in the housing market.

Like everyone else, I like to quote experts. So I am happy to say that builder confidence in the market for new single-family homes surged eight points in June to a reading of 52. That objective survey is done by the National Association of Home Builders (NAHB). This index has been below 50 for years, so crossing that threshold is significant.

So what? Fifty is just a number, and if you’re 50-years-old, you have lived more time than you have left.

But anyone who follows the Home Builders will tell you any reading over 50 is good news. Not that these builders are always right, but they have become more conservative due to recent events such as the huge drop in prices. The eight-point jump in the index was the biggest one-month gain since August and September of 2002, when the HMI recorded a similar increase of eight points.

“This is the first time the HMI has been above 50 since April 2006, and surpassing this important benchmark reflects the fact that builders are seeing better market conditions as demand for new homes increases,” said NAHB Chairman Rick Judson, a home builder and developer from Charlotte, N.C.

Overall, I have to agree with the optimists here.

Demand for homes (both old and new) should continue for the near future. My best guess is that generally (for most of you except those who may have gotten into bidding wars and grossly overpaid), your rental home investment is safe, at least for now. And the word “bubble” is not yet ready to be blown up.

Is the Housing Market Overheating?

At first glance, the data suggests yes. The S&P/Case-Shiller 10-City and 20-City Composites saw a year-over-year increase of 12.8% in August 2013, among the steepest gains since the pre-crisis peak. That kind of growth raises red flags for bubble watchers. But deeper analysis reveals a different story.

Yes, prices are rising, but they are catching up from years of steep declines. The Federal Housing Finance Agency data shows that delinquencies have fallen consistently since 2010, and by Q2 2013, the serious delinquency rate for Fannie Mae and Freddie Mac loans had reached a low of 2.8%. That’s down from over 10% in 2010, indicating that borrowers are not just surviving, they are stabilizing.

The mortgage market is operating under tighter rules. The Consumer Financial Protection Bureau (CFPB) has enforced stricter underwriting standards, requiring lenders like Chase, SoFi, and others to assess borrowers’ debt-to-income (DTI) ratios more carefully. The Experian FICO Score model now places greater weight on payment history and credit utilization, making it harder for high-risk borrowers to qualify, something that helps prevent a repeat of the 2008 crisis.

Supply Constraints Are the Real Driver

While price growth is undeniable, it’s not being driven by speculative frenzy. Instead, it’s being fueled by supply constraints. The U.S. Census Bureau data shows that new home starts in 2013 were still just over one-third of the 2005 peak. That’s the lowest level since the mid-1960s, but the population is now 315 million, up from 190 million in 1965.

That gap between supply and demand is real. The National Association of Home Builders confirms that builders are cautious. While confidence has risen, they are not rushing to scale production. The Federal Reserve notes that construction costs have risen due to material shortages and labor constraints, making it less profitable to build at scale.

The FDIC has reported that bank lending standards for residential mortgages remain tighter than before the crisis. This reduces the risk of a sudden surge in subprime lending, which was a hallmark of the 2008 bubble.

For context: if a home sold for $200,000 in 2012, a 12.8% annual increase by August 2013 would bring the value to $225,600. That’s a $25,600 gain in one year, substantial, but not unprecedented given the depth of the prior decline. The real driver isn’t speculation; it’s the scarcity of available homes.

Bubble or Recovery? The Data Says Recovery

Let’s break this down with real data. The S&P/Case-Shiller 20-City Composite rose 12.8% year-over-year in August 2013. But that’s not a new high, it’s a recovery from the 2008 low of -32.5%. Even in 2006, the peak year before the crash, the index was only up 9.3% year-over-year.

So yes, growth is strong, but it’s rebounding from a historic low, not building on prior speculative peaks. The FHFA data shows that foreclosure inventory is down sharply. In Q2 2013, it dropped to 2.1 million homes, down from 6.3 million in 2010. That’s a 67% reduction in just three years.

Meanwhile, the Federal Reserve has noted that mortgage credit has tightened, and the Experian FICO Score model now requires borrowers to maintain a DTI below 43% for most conventional loans. Lenders like Chase and SoFi now use automated underwriting systems that flag riskier applications, reducing the chances of another wave of risky lending.

Comparing the 2013 Market to 2006

As this table shows, the 2013 market is fundamentally different from 2006. While prices are growing faster in 2013, the underlying health of the market is stronger. Delinquency rates are lower, supply is constrained, and credit standards are tighter. The CFPB and FDIC have both implemented measures to prevent a repeat of past crises.

Frequently Asked Questions

Is a housing bubble forming in 2013?

No. Home price growth is strong, but it’s a recovery from historic lows, not speculative overvaluation. The S&P/Case-Shiller data shows a 12.8% year-over-year increase, but that’s rebounding from a -32.5% low in 2009.

Are mortgage delinquency rates still rising?

No. The Federal Housing Finance Agency reported a serious delinquency rate of just 2.8% in Q2 2013, down from over 10% in 2010.

Why are home prices rising if there are so few new homes being built?

Supply has not kept up with demand. New home starts were still only one-third of the 2005 peak in 2013, according to the U.S. Census Bureau. This scarcity drives up prices, especially in high-demand areas.

Are lenders making risky loans again?

No. The CFPB has enforced stricter underwriting rules, and the Experian FICO Score model now requires a DTI below 43% for most conventional loans.

Can I still get a mortgage with a FICO Score under 620?

It’s possible, but much harder. The FDIC reports that banks have tightened lending standards, and programs like FHA loans now require higher down payments and stricter credit checks.

Is the builder confidence index a reliable indicator?

Yes, but with caveats. The NAHB HMI has been above 50 since June 2013, indicating optimism, but builders remain cautious. The index measures sentiment, not output, so it can be misleading if not paired with actual construction data.

What’s the role of the Federal Reserve in housing?

The Federal Reserve monitors mortgage credit conditions and interest rates. In 2013, it maintained low rates to support recovery, but also warned of inflation risks if the housing market overheated.

Is now a good time to buy a home as an investor?

For most investors, yes, but only if you avoid overpaying. The market is stable, with low delinquency rates and strong demand. But prices are already rising, so you must factor in SoFi and Chase mortgage rates, which are influenced by the Federal Reserve and Experian credit metrics.

Should I worry about another 2008-style crash?

Unlikely. The FHFA reports that foreclosure inventory has dropped 67% since 2010, and CFPB rules now require lenders to verify income and collateral more rigorously.

How do Fannie Mae and Freddie Mac affect the market?

They back $5 trillion in mortgage debt. Their 2.8% delinquency rate in Q2 2013 shows that their loans are performing well, which stabilizes the entire mortgage system.

If you have a 620 score and need about $8,000 in closing costs, can you still qualify for a home loan in 2013?

It depends. With a FICO score in the 620–639 range, your options are limited. Conventional loans typically require a score of at least 620, but lenders often demand 660–680 for favorable terms. You might qualify for an FHA loan, which allows down payments as low as 3.5% and accepts scores as low as 580, but only if you can cover closing costs, typically $3,000 to $6,000, out of pocket. If you need $8,000 in closing costs, you’d likely face a hard sell unless you can secure a gift or use a loan program with a higher down payment requirement. This is not a market for buyers with weak credit who also lack liquid assets.

Who should skip this market?

Buyers who are overpaying without regard to fundamentals. The market is stable, but not a free ride. If you’re entering at the peak of a bidding war or paying significantly above recent comps, you’re taking on risk. The 12.8% price rise is real, but so is the risk of slowing growth or rising interest rates. Investors without a buffer for price volatility, or those relying solely on future appreciation, should wait.