The number of permits issued for home and business construction in Minneapolis is up forty percent from 1998. The business building boom is easy to see as office towers pop up on the downtown skyline. Housing construction is less visible but every bit as robust. New downtown condo's and apartments for the empty-nester and twenty-something markets get a lot of the attention. But city numbers also show a surge among residents getting permits to expand or improve neighborhood housing. Minnesota Public Radio's Dan Olson reports.