Tavros Office Building is a 23,900 m² office building located in in Athens which was certified with LEED v3 for Operations & Maintenance at Platinum level initially in 2015. The Project was recertified in 2020 with LEED v4.1 for Operations & Maintenance achieving LEED at Gold level.

The process enabled the building owner and tenant to measure operations, improvements, and maintenance, with the goal of maximizing operational efficiency and minimizing environmental impacts. In particular, the building was evaluated in terms of actual energy and water management, site maintenance, waste management as well as indoor environmental qualities and transportation patterns. Certain measures were taken, such as a full commissioning program and a holistic framework of operational policies which optimized the overall environmental footprint of the building.