The true test of sustainable buildings lies in how well the design performed over the life of the building performs. As we have mentioned in previous articles, any additional capital costs for green buildings, as well as any increases in market value or rental premiums, are due to the realization of occupancy benefits related to two main areas:

• in reducing operation and maintenance costs and
• in productivity and health benefits.

In this article we will explore the savings that can be achieved with sustainable buildings in terms of operational costs.

The main benefits directly related to sustainable building design include reduced energy costs from factors such as heating, cooling, lighting, ventilation and reduced water consumption. Other benefits, such as reduced operating costs and maintenance requirements, require effective management procedures to be put in place before the building is occupied in order to reap the maximum benefits of the building’s sustainability.