Functional life
Several definitions have been developed to assess or specify the expected life of buildings, structures or their components from the perspective of different stakeholders.
Functional life refers to the amount of time that an element may be in service before it is rendered obsolete due to changes in functional requirements, such as a change in use.
However, as there is no general legally-agreed definition of functional life, if it is to be included in contract documentation as a performance requirement, it is important that it is carefully defined within those contract documents and that it is consistent with all other requirements in the contract documents.
Other definitions include:
[edit] Related articles on Designing Buildings Wiki
- Concept structural design of buildings.
- Decommissioning.
- Demolition.
- Design quality for buildings.
- End of life potential.
- Fitness for purpose.
- Life.
- Life cycle assessment.
- Service life.
- Structures at the end of their design life.
- Useful life.
- Utilising life cycle costing and life cycle assessment.
- Whole-life costs.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Accommodating the Victorian and Edwardian working woman. Book review.
Rethinking passive fire protection in design
PFP demands the same level of design rigour as structure or services.
38% of Gen Zs feel safe when a fire door is wedged open.
Stunning images from around the world
Shortlist for CIOB’s Art of Building photography competition.
Guidance for conversion of traditional pre-1919 stone buildings.
Industrial heritage in the Ruhr
A marked difference to the fate of industrial landscapes in the UK.
Communities will be able to build their own clean energy.
Why diversity and inclusion matters for SMEs
CIOB’s D&I Charter shows how practical changes can support long-term growth.
Cut electricity bills to power growth
Coalition sends joint letter to the Chancellor.
Gasholders: a history in pictures. Book review.
Recognition, influence and growth
SocEnv identifies three strategic pillars in new strategy to 2045.
Discover the future of roofing, cladding and insulation.

















