- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 17 Jan 2021
'Required life' is the minimum period during which the element, or part of it, should meet the users’ requirements. This means that it should remain capable of performing its design functions, taking into account routine servicing and maintenance.
However, as there is no general legally-agreed definition of required 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:
 Related articles on Designing Buildings Wiki
- Concept structural design of buildings.
- Design quality for buildings.
- End of life potential.
- Fitness for purpose.
- 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 and news
Survey reveals green skills gap.
America's economic collapse produced scores of PWA Moderne projects.
The benefits of glowing aggregates and cement.
Urgent need for open communication to address mental health issues.
Guidance offered on COVID-19 green recovery, building safety and more.
Providing strength and support above the joists.
Enforcer will test and investigate product safety.
Underfloor air conditioning comes to 24 St James's Square.
Consultation on public right to buy unused public property.
IHBC resource offers improved consistency.
New laws to ‘retain and explain’ historic statues.
The principles and art of the possible. Book review.