Demolition in Europe: Volume, motives and research approach

What determines the life span of dwellings? Much is known about the initial phase of buildings. The vast majority of scientific knowledge is concentrated on the building initiative, the programming, design and in particular the construction. Knowledge about the utilization phase, including management, transformation and redesign is growing. But...

Upgrade or replace?: The effect of the EPBD on the choice between improvement or replacement

What is better: improvement or replacement by new construction? The choice between life cycle extension and replacement of existing buildings is at itself a vital but very difficult decision, involving a wide range of different aspects and affecting several contrary and often conflicting interests. The emerging ecological awareness of the...

Obsolescence, conceptual model and proposal for case studies

What is obsolescence? There is a general understanding that buildings, similar to machinery, should be demolished and replaced when they become obsolete. The truth of this assertion is found problematic, as obsolescence is not clearly understood in conceptual or practical terms. Understanding obsolescence is important. It presents a serious...

Understanding obsolescence: A conceptual model for buildings

What is obsolescence? Numerous older buildings have been demolished due to being labelled as obsolete. There is a general understanding that buildings, similar to machinery and durable consumer goods, should be demolished and replaced when they become obsolete. The truth of this assertion is examined and found to be problematic, as obsolescence...