For the 12-month period ended February 28, 2019, there were building permits issued for 785 new homes in St Louis County, a decline of 21.11% from the prior 12-month period, according to the latest data from the St Louis HBA. As the table below shows, St Charles County saw a decline of 13.05% during the same period however the other counties reported on by the St Louis HBA are all showing increased new home building activity for the period. From a percentage standpoint, Warren County saw the biggest increase at 30.04%.