Housing renovation - from e to better : renovation of existing outdated housing in steps toward energy neutral in 2050

Renovation of existing buildings in The Netherlands is crucial when aiming for an energy neutral building stock in 2050. Replacement of the current stock seems impossible in terms of building and demolition capacity as well as waste production. This research focuses on post World War fl terraced housing built in the 1945-1975 period as this type of housing forms a substantial part of the Dutch housing stock and is usually inhabited by low income groups that do not have the financial means to renovate themselves. Also these people will be affected most by rising energy costs. Renovation concepts generally present a solution that attempts to achieve the maximum in terms of energy performance at very high costs. In this research a strategy for renovation in steps is presented. A next step will be taken when economically feasible. A renovation product is developed that creates value for the tenant and for the housing corporation and that can be installed with limited nuisance for the occupant. The product can be extended and improved by future technological developments. The tenant gets improved comfort, lower energy bills and can adapt his lifestyle gradually: the sustainabi/ity career.