As the climate conversation reshapes material choices, structural stone is getting a fresh look. Metropolis Magazine reports that architects and engineers across the U.K., France, Belgium, India, and Spain are testing stone not just as cladding, but as a primary structure that brings compressive strength, fire resistance, and lower embodied carbon.
In London, architect Amin Taha and Webb Yates Engineers designed a trio of raked-profile residential towers on Finchley Road with a load-bearing stone exoskeleton. The tallest rises 10 stories, using basalt sourced from Sicily and Norway. Taha says basalt’s heat resistance and compressive strength allowed less material than limestone, which also reduced transport emissions and helped control cost. The Finchley Road work builds on his earlier Clerkenwell Close project, a seven-story limestone structure that relied on French quarry capacity when U.K. suppliers could not produce stones at the needed scale.
Other examples lean hard into local materials and traditional binders. Woodstock House in Belgium’s Ardennes uses Grès du Condroz sandstone and sets stone walls on compacted gravel over schist bedrock. Its towers are built with lime, not cement. In Jaipur, India, architect Kamal Malik used local pink sandstone and lime, forming two 6-inch stone walls with a 6-inch cavity tied together with gun metal ties for earthquake resistance, while cutting material use by 30 percent.
For mason contractors watching labor, production, and carbon pressures, Taha’s push for “stone bricks” stands out. He estimates stone bricks generate up to 98 percent less carbon emissions than fired clay brick, which he notes contributes about 500 million tons of CO2 globally. Groupwork’s three-story Stone Demonstrator at London’s Earls Court site also highlights pre-tensioned stone beams and columns as a repeatable construction approach.
Salvage and circular construction show up, too. In Eton, CSK Architects are building Phoenix House with stone and brick reclaimed from an 18th-century mansion, using 3D scanning to sort fragments by size and plan new structural stone portals that maximize reuse.
Read the full, original article from Metropolis Magazine here.