BROOMFIELD - Two-thirds of multifamily units permitted last year in Colorado were for projects in Broomfield and Denver counties, according to the state's Division of Housing.

There were 4,356 multifamily units permitted in Denver County and 1,848 in Broomfield County, combining for 6,204 of the 9,807 units permitted in the state, an increase of 150 percent from 2011 to 2012. A permit is issued for each living unit of a proposed project.

This matches up with the anecdotal evidence from brokers that the hot spots were downtown Denver and the Boulder Turnpike corridor in 2012.

Boulder County had 464 multifamily units permitted in 2012, a 350 percent increase from 2011.

The other counties that were active for the year in multifamily permitting were Arapahoe, 746 units; Larimer, 691 units; El Paso, 597 units; and Douglas, 590. The number of units permitted in Weld County grew only slightly from zero to 34.