Skip to main content What's the 'greenest' building in CT? It could be this Norwalk flooring company's new HQ Alexander Soule FacebookTwitterEmail 1of8 A rendering of a design center being built by HMTX Industries in Norwalk, Conn., which will seek certification under the Living Building Challenge that has among the most exacting "green building" specifications globally. (Rendering courtesy HMTX Industries) Show MoreShow Less 2of8 HMTX Industries CEO Harlan Stone in February 2020 at the flooring manufacturer’s headquarters in Norwalk, Conn.Ned Gerard / CT InsiderShow MoreShow Less 3of8 4of8 Construction preparations continue in a drizzle on Thursday, April 15, 2021, for HTMX Industries planned design center that will seek certification from the Living Building Challenge for environmental sustainability.Alexander SouleShow MoreShow Less