The building sector is set to grow exponentially. It already has a huge environmental footprint, with the domestic and commercial sectors consuming some 30 per cent of India’s electricity. So, the imperative to go green is clear. The question is where India is and where it should go. The Bureau of Energy Efficiency (BEE) has issued the Energy Conservation Building Code (ECBC) to improve the energy performance of buildings by 40-60 per cent. But the use of the code in design is not linked to the actual performance of the building after it has been commissioned.