Britannica Dictionary definition of S LEVEL. [count] British. : the highest of three tests in a particular subject that students in England, Wales, and Northern Ireland take usually at the age of 18. She got an A in her S levels in math, physics, and chemistry. — called also Scholarship level. — compare a level, o level.
Level (s) provides a common language for assessing and reporting on the sustainability performance of buildings. It is a simple entry point for applying circular economy principles in our built environment. Level (s) offers an extensively tested system for measuring and supporting improvements, from design to end of life.