The most important guide for lighting in the workplace just had a first update in over a decade. The European Standard EN12464-1:2021 was approved in May 2021 by CEN ( European Committee for Standardisation). The British Standard BS EN12464-1:2021 is the British implementation of the standard, published by BSI. It supersedes the EN12464-1:2011, which is now withdrawn.

More detail.

Room brightness

Illuminance on calculation areas

Revised schedule on lighting requirements


Design considerations