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A building built in a traditional way has an expected lifespan of 50–100 yrs, but usually after 20–30 yrs it is not economically valuable. Demolition is then the go-to solution. In the circular economy, the value of a building is maintained by extending its ‘functional’ lifespan.
Longevity in buildings can be stimulated through modular, flexible, and durable designs. Such design approaches also ensure a building is capable of being adapted to changing user needs as well as offering easier maintenance and renovations.
Modular design typically reuses 80% of the components in a building’s exterior so that it can stand for 100 years or more, coupling modularity with durability. Altogether, prolonging a building's lifetime could reduce CO2 emissions by 1.0 Gt beyond 2050. #circulareconomy
