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Cost of Sustainable Homes (Percentage Increase)

The Code for Sustainable Homes is an Assessment Methodology introduced by the BRE. In the guide IP 4/05 the BRE explore the perceived extra costs associated with achieving code for sustainable homes at various levels.

Some typical percentage increases are listed below.

Project Type / Level Sought Pass Good Very Good Excellent
House 0.0 0.4 1.7 6.9
Office - -0.4 -0.3 3.4
Health Care - - 0 1.9

CSH Code for Sustainable Homes may force you consider passive ventilation which is why there are cost reductions associated with the offices built to CSH.