Catherine Koh

Catherine Koh is an economist at NAHB with the Forecasting and Analysis Department where she analyzes housing-related data and trends to produce industry forecasts and analysis. She has worked at the International Monetary Fund and World Bank prior to joining NAHB and focuses on economic and financial research. She has published an IMF Working Paper on migration as well as several IEO background papers. She holds a master’s in applied economics from Johns Hopkins University.

Refinancing Activity Continues to Climb in September

The Market Composite Index, a measure of mortgage loan application volume by the Mortgage Bankers Association’s (MBA) weekly survey, rose 18.4% month-over-month on a seasonally adjusted (SA) basis, driven primarily by a surge in refinancing activity. Compared to September 2023, the index increased by 47%. The Market Composite Index which includes the Purchase and Refinance…

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Dot plot showing HPI ratio for family households

Homeownership Rates of Family Households

The homeownership rate for multigenerational households increased by 4.9 percentage points (pp) over the last decade, but there’s another household type that experienced an even larger increase in the homeownership rate over the same period—single parent households. In further analysis of the Census’s American Community Survey (ACS) data, NAHB dives deeper into the homeownership rate…

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New Homes Built with Private Wells and Individual Septic Systems in 2023

Shares of new single-family homes built with private wells and individual septic systems decreased in 2023, compared with the previous year. NAHB tabulation of data from the Survey of Construction (SOC) indicates approximately 9% of new single-family homes started in 2023 were served by individual wells and 17% had private septic systems. There are large…

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Rising Homeownership Rate for Multigenerational Households

The homeownership rate for multigenerational households surpassed that of all other family household types in 2022 and now stands at 74.2%, exceeding the homeownership rate of other family households of 73.9%. Just a decade ago, the homeownership rate for multigenerational stood at 69.3%, second to other family households at 71.3%. Multigenerational households are defined by…

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