Construction.74 2020-09-20by Antony Templier127 Views Written by Antony Templier Self-built GREB Technical House. Project Data Place:Montlouis-sur-Loire Completion:2012-05-01 Construction:Tunnel (GREB technique) with mixed mortar/plate Visitable:No Press photos:No Living Area:140m2 U-Value (Wall):W/m2K U-Value (Roof):W/m2K Categories: Projects France, Self-built GREB Technical House.