LiderA
The LiderA system is based on the concept of repositioning the environment within construction from a sustainability perspective, establishing itself as a system to lead by the environment throughout the lifecycle.
The proposed system applies to the different development stages of the project lifecycle: (1) from concept to planning, (2) design, (3) new construction, (4) operation, and (5) rehabilitation/demolition.
The current available version is Version 4, which can be applied to various typologies (residential, tourism, commercial, and other services), ranging from individual homes to buildings and larger developments.
Who typically uses it?
Developers, Municipalities, Designers, Contractors, Project Managers, Clients, and Users of Built Environments.
How is it organised?
It is organised around six principles of good environmental performance (local integration (habitat), resources (flows), management of environmental loads (emissions), service quality and resilience, socio-economic experiences, and sustainable use), translated into 20 areas and 40 programmatic criteria (programmes), through which built environments are assessed based on their performance towards sustainability.
What levels are available?
The system classifies performance from 0 to 10, translated into letters G to A (up to A+++), where level 1 or E represents the current (or reference) practice, and level 2 or A corresponds, in many criteria, to a performance approximately 50% higher than level E. Level A+ is a Factor 4 (75% higher than level E), and level A++ is a Factor 10 (90% higher than level E). In exceptional cases, level A+++, representing a regenerative state, may be awarded.
Final value
The twenty (20) areas and forty (40) programmatic criteria have an assigned weighting that supports the calculation of the overall performance score on the same scale from 0 to 10.
A brief overview of Version 4 is available here (6 pages).
The full explanation of the system is available in the LiderA V4 standard (a 40-page document).