HAHBO builds modular timber buildings from its base in Wijnegem, serving schools, sport and youth associations, companies, public services, care housing and private workspaces. Its systems include LLEXX, ALRO and CANGO, with factory production and on-site assembly.

The company emphasizes circular timber construction, cellulose insulation, reusable materials and solar-powered production, so it is most relevant for non-residential or small residential space needs rather than catalogue family homes.