Des Moines areaâs apartment vacancy rate at 6.8% Thursday, April 29, 2021 11:08 AM The following are some highlights from CBRE|Hubbell Commercial’s 2021 first-quarter multifamily market report for the Des Moines area: The vacancy rate of the 35,251 apartment units surveyed was 6.8% in the first quarter, up slightly from 6.6% in the previous quarter. The central business district had the area’s highest vacancy rate at 9.2%. The average asking monthly rent was $955, up from $945. Average monthly rental rates ranged from $718 on Des Moines’ east side to $1,...