America’s offices are emptier than at any point in at least four decades, reflecting years of overbuilding and shifting work habits that were accelerated by the pandemic.

A staggering 19.6% of office space in major U.S. cities wasn’t leased as of the fourth quarter, according to Moody’s Analytics, up from 18.8% a year earlier. That is slightly above the previous records of 19.3% set in 1986 and 1991 and the highest number since at least 1979, which is as far back as Moody’s data go.