Conservation of Old Buildings
Reusing an existing building, (instead of demolishing it and replacing it with a new one), is very green and a good way to conserve energy. Conservation uses 40% lesser amount of materials and is usually labour intensive.
Rehabilitation of 2-3% of our housing stock means perpetual employment in building trades. Infrastructure investment is reduced and the greenfield is preserved. Study done by US Energy Information Agency says that buildings constructed before 1920 are more energy-efficient than those put up between 1920 and 2000.
Study done in UK shows that it takes 35-50 years for an energy-efficient new home to recover the carbon expended in constructing it.
No matter how much greener technology is used, still it makes an impact on the environment. The greenest building is one that already exists. Conserving our historic cities is smart growth and we can have a smart city only then.
Photo 1 is from the project "Conservation of Mangala Heritage" designed by us
Photo 2 is from the project "Conservation of Paliam Palace" designed by us