Why It Matters

Puerto Rico's mortgage market proved surprisingly resilient after Hurricane Maria struck in September 2017, despite a tripling of loan delinquencies in the immediate aftermath.

A recent Government Accountability Office (GAO) report examined mortgage performance in Puerto Rico after the hurricane, revealing that targeted protections for insured and guaranteed loans, combined with a temporary foreclosure moratorium, significantly blunted the housing market damage.

The report summarizes findings from a November 2023 Federal Reserve Bank of New York study that tracked how Puerto Rico's housing market weathered one of the costliest natural disasters in U.S. history.

Understanding what protected borrowers and lenders during this crisis matters now as policymakers weigh how to structure disaster relief and mortgage protections for future hurricanes and climate events.

The Big Picture

Puerto Rico's Housing Market Before and After the Storm

Puerto Rico's housing market was already fragile when the hurricanes arrived. The island had experienced a prolonged economic recession before Hurricane Maria, which contributed to rising mortgage delinquencies and foreclosures even before the storm made landfall.

The mortgage landscape in Puerto Rico differed markedly from the U.S. mainland. About 41 percent of owner-occupied homes in Puerto Rico had mortgages in 2017, compared to about 67 percent on the mainland. While homeownership rates in Puerto Rico were comparable to those on the mainland that year, far fewer homeowners had financed their purchases with mortgages. This reflected the informal housing sector, where properties on public land or family plots lack formal title, limiting mortgage access.

More than 10 percent of active mortgages in Puerto Rico were already delinquent when Hurricane Maria struck. When the hurricane hit in September 2017, the delinquency rate roughly tripled by November 2017, a stunning acceleration that reflected both the physical destruction and the economic paralysis that followed. Yet the system did not collapse entirely.

How Protections Blunted the Damage

Mortgage insurance and government assistance helped protect banks from losses on residential mortgages in Puerto Rico, though this protection was unevenly distributed. Loans covered by mortgage insurance or guaranteed by the Department of Veterans Affairs were less likely to result in bank losses. Banks experienced the greatest losses on conventional mortgages without private mortgage insurance, the borrowers least able to afford disaster.

Insured or guaranteed mortgages made up about 37 percent of all loans in Puerto Rico. This meant that roughly 63 percent of mortgages carried no such federal or private safety net. For those borrowers, the hurricane's impact fell harder.

Mortgage losses were more common among loans that were already troubled before Hurricane Maria, according to the Federal Reserve analysis. This pattern suggests that the disaster accelerated existing problems rather than creating entirely new ones, a distinction that matters for understanding whether the crisis was cyclical or structural.

The Government Response and Recovery

Federal authorities moved quickly to prevent a foreclosure cascade. The Department of Housing and Urban Development, Federal Housing Administration, Fannie Mae, Freddie Mac, and the U.S. Department of Agriculture imposed a foreclosure moratorium from the fourth quarter of 2017 through the third quarter of 2018. This 12-month pause was designed to give borrowers time to recover and stabilize their finances.

The moratorium appeared to work as intended. Despite the spike in delinquencies, foreclosures continued to decline during the foreclosure moratorium. After the moratorium was lifted, foreclosures rose for several months before returning to prior trends after about one year.

The mortgage delinquency rate in Puerto Rico returned to pre-Maria levels one year after the hurricane. This rapid normalization suggested that either borrowers recovered quickly, or that the system found ways to absorb or move past the crisis. Most 2019 foreclosures involved mortgages that were already delinquent before Hurricane Maria, indicating that the hurricane's long-term impact on the overall foreclosure trajectory was modest.

The Data Gap

Congress mandated this investigation through the Economic Growth, Regulatory Relief, and Consumer Protection Act, which required the GAO to examine foreclosure trends in Puerto Rico before and after Hurricane Maria.

The law also required the GAO to report on rates of return for housing developers in Puerto Rico, a measure of whether the reconstruction attracted investment and sparked new construction.

However, the GAO could not conduct analysis on rates of return for housing developers in Puerto Rico because data were not available. This gap in the official record means that a key question about Puerto Rico's post-hurricane recovery remains unanswered: whether the crisis prompted new housing development or left the territory's construction sector dormant.

The Bottom Line

For Puerto Rico, the gap in developer return data suggests that federal authorities may be monitoring some aspects of recovery while remaining blind to others.

The broader lesson from the mortgage data is clear: targeted protections for insured and guaranteed loans, combined with a temporary foreclosure moratorium, can significantly blunt the housing market damage from natural disasters.

Yet the uneven distribution of those protections also reveals a vulnerability: borrowers with conventional mortgages and no insurance bore disproportionate losses.

As policymakers design disaster relief frameworks for future climate events, the Puerto Rico case demonstrates both the potential and the limits of existing safeguards.

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