Prior was 1.305mBuilding permits 1.400m vs 1.395m Prior permits 1.275mPermits change m/m vs -2.1% priorThis is another disappointment on the housing front and comes after yesterday's survey of home builders showed sentiment at the worst levels since 2012. High mortgage rates are the big problem in the industry, which is in a deep recession. There is a bit of help today in the rates market with US 30-year yields down 6.4 bps to 5.41%.For background, the US housing starts report offers an early look at momentum in one of the economy’s most interest rate sensitive sectors. Published monthly by the Census Bureau and the Department of Housing and Urban Development, it tracks construction of new privately owned homes, alongside building permits and housing completions.A housing start is recorded when excavation begins for a building’s foundation. The headline figure is reported at a seasonally adjusted annual rate, showing what a full year of construction would look like if that month’s adjusted pace continued. It is not the number of homes actually started during the month.For markets, the distinction between single-family and multifamily construction matters. Apartment projects can produce sharp swings in the headline, while single-family starts generally provide a clearer signal of underlying homebuilding demand. Each apartment counts as a separate housing unit, so a few large developments can significantly influence the total.Building permits are closely watched because they offer a signal of future construction activity. However, authorization does not guarantee that a project will proceed immediately, particularly when financing costs, labour shortages or weak demand make builders cautious.Housing punches above its weight economically. Construction supports employment and demand for materials, while completed homes generate spending on furniture, appliances and other household goods. That makes the report useful for assessing growth and the transmission of Federal Reserve policy.The caveat is volatility. Weather, regional disruptions and sampling uncertainty can distort monthly readings, and initial estimates are revised. Investors therefore weigh the broader trend, permits and revisions before drawing conclusions from any headline. This article was written by Adam Button at investinglive.com.