PROJECT ONE GROUP is a technical and energy engineering company based in Thessaloniki, Greece. Active in renovations since 2016, it serves Thessaloniki, Halkidiki, and parts of Eastern Macedonia and Thrace. Its multidisciplinary team includes civil engineers, architects, and mechanical engineers, providing technical consultancy from initial planning through project completion. The company designs, licenses, constructs, and supervises private and public works, with attention to functionality, appearance, detail, and agreed schedules.

Its engineering services include building permits, electronic building identity records, energy performance certificates, property regularization, installation and operating permits, and workplace safety technical support. Renovation services cover homes, bathrooms, kitchens, retail premises, and hotels. Through Project One Green, the company also offers expertise in passive and bioclimatic buildings, insulation, heating and cooling systems, and Greece’s “Saving at Home” energy-upgrade program. PROJECT ONE GROUP states that it is certified as a passive-building designer and consultant and is a member of the Hellenic Passive House Institute. It presents its services as an integrated resource for building, upgrading, and improving properties.