U.S. home construction slipped last month as an uptick in the building of single-family homes was offset by a big drop in apartment construction.

The Commerce Department said Wednesday that construction was started at a seasonally adjusted annual rate of 1.25 million in June, down 0.9% from 1.27 million in May. Construction of single-family homes rose 3.5%, but apartment building skidded 9.4%.

Applications for building permits, an indication of future construction, fell 6.1% last month to 1.22 million, the lowest since May 2017.

Falling mortgage rates are expected to spur home construction, overriding other concerns such as shortages of building lots and construction workers. The average rate on a 30-year, fixed-rate home loan last week stood at 3.75%, down from 4.53% a year ago.