If architecture firm Perkins + Will’s latest concept takes root, the Windy City’s next residential skyscraper might just be one to go against the grain.

The company recently unveiled designs for the River Beech Tower, an 80-story timber high-rise that would be the world’s tallest wood skyscraper if built. Conceived in collaboration with engineering studio Thornton Tomasetti and a team from England’s University of Cambridge, the concept was proposed as part of Perkins + Will’s…