Safe Useful Life Expectancy
Trees in Hard Landscapes, A Guide for Delivery, published by the Trees and Design Action Group in September 2014, defines Safe Useful Life Expectancy (SULE) as a: ‘…method of assessing the relative importance of individual trees, categorized as ‘good’, ‘medium’ or ‘bad’ within an identified group or area (usually a development site). Subjective and so cannot be absolute judgement.’
[edit] Related articles on Designing Buildings Wiki
- Arboriculturist.
- A guide to the use of urban timber FB 50.
- Definition of tree for planning purposes.
- Forests.
- The benefits of urban trees
- The effect of trees on rights of light.
- The use of timber in construction.
- Timber.
- Tree preservation order.
- Tree rights.
- Tree root subsidence.
- Trees in conservation areas
- Trees.
- Tree root subsidence.
- Types of timber.
- Urban trees.
- Useful life.
Featured articles and news
The Building Safety Forum at the Installershow 2025
With speakers confirmed for 24 June as part of Building Safety Week.
The UK’s largest air pollution campaign.
Future Homes Standard, now includes solar, but what else?
Will the new standard, due to in the Autumn, go far enough in terms of performance ?
BSRIA Briefing: Cleaner Air, Better tomorrow
A look back at issues relating to inside and outside air quality, discussed during the BSRIA briefing in 2023.
Restoring Abbotsford's hothouse
Bringing the writer Walter Scott's garden to life.
Reflections on the spending review with CIAT.
Retired firefighter cycles world to raise Grenfell funds
Leaving on 14 June 2025 Stephen will raise money for youth and schools through the Grenfell Foundation.
Key points for construction at a glance with industry reactions.
Functionality, visibility and sustainability
The simpler approach to specification.
Architects, architecture, buildings, and inspiration in film
The close ties between makers and the movies, with our long list of suggested viewing.
SELECT three-point plan for action issued to MSPs
Call for Scottish regulation, green skills and recognition of electrotechnical industry as part of a manifesto for Scottish Parliamentary elections.
UCEM becomes the University of the Built Environment
Major milestone in its 106-year history, follows recent merger with London School of Architecture (LSE).
Professional practical experience for Architects in training
The long process to transform the nature of education and professional practical experience in the Architecture profession following recent reports.
A people-first approach to retrofit
Moving away from the destructive paradigm of fabric-first.
International Electrician Day, 10 June 2025
Celebrating the role of electrical engineers from André-Marie Amperè, today and for the future.
New guide for clients launched at Houses of Parliament
'There has never been a more important time for clients to step up and ...ask the right questions'
The impact of recycled slate tiles
Innovation across the decades.
EPC changes for existing buildings
Changes and their context as the new RdSAP methodology comes into use from 15 June.