The search for the most eco-efficient strategies for sustainable housing transformations

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Abstract

Housing transformations are an interesting intervention in post-war housing
areas. Two case studies show that housing transformations can fill the gap
between consolidation and large-scale demolition. It is often said that this causes
less environmental impact. However, not much knowledge on this subject is
available yet. Environmentally comparing housing transformations versus new
construction not only has to do with environmental impacts during construction,
but also with environmental impacts over time. A balance has to be sought
between these two kinds of environmental impacts. That is possible by
calculating average annual environmental impacts from the year of original
construction up to and including discard at the end-of-life of housing
transformation or new construction. This is against current opinions of
comparing alternatives over the same lifetime. The method will be tested in the
next stage of the research.