TEXT: FILE- In this Nov. 15, 2016, file photo, Lever Architecture founder Thomas Robinson looks over artist renderings in Portland, Ore., of a 12-story all-wood building that his firm is working on to be built in Portland's trendy Pearl District. City officials in Portland have approved a construction permit for the first all-wood high-rise building in the nation. Developers announcing the approval Tuesday, June 6, 2017, say it's a milestone for wood technology. (AP Photo/Don Ryan, File)