During the 12-month period ending November 30, 2023, there were 3,932 building permits issued for new single-family homes in the St. Louis area. This figure marks a 14.71% decrease from the previous 12-month period, which saw 4,515 permits issued, as per the latest data from the Home Builders Association of St. Louis & Eastern Missouri (St. Louis HBA). The downturn was observed in all counties except Warren County, with five of them experiencing double-digit declines. Warren County notably reported an increase in building permits for the fourth consecutive month.