An audit of tall mass timber buildings turned up 139 such structures around the world either complete, under construction, or proposed. The audit of mass timber structures of eight stories or higher by the Council on Tall Buildings and Urban Habitat recorded 66 completed projects, 18 under construction, and 55 that have been proposed. The tallest is a 25-floor residential tower under construction in Milwaukee scheduled to be completed later this year. Europe, with 60 buildings recorded, is leading the way in mass timber. North America has 15 tall mass timber structures either already built, under construction, or proposed. Australia has eight. Fifty-four of the buildings globally are for residential use. Sixteen are for office use; 12 are designated mixed-use; and two are institutional. Thirty-eight of the buildings audited are considered all timber, with the others being a combination of timber with concrete and/or steel structural elements.