The towers achieved an “Excellent” rating in the “Building Management” category and a “Very Good” rating in the “Asset” category. The green solutions implemented include a building management system, which reduces water and energy use, amenities for cyclists including showers and lockers, and electric car charging points for both tenants and guests, as well as the replacement of traditional lighting with LED and installing rainwater collection tanks for watering the greenery. The energy used in the buildings comes only from renewable sources (PTCE certificate). Lumen and Skylight are the first buildings in Warsaw that have been certified BREEAM In-Use International. They offer app. 45,000 sqm of class ‘A+’ office space.