European CEN Standard for Daylight in Buildings (EN17037)

• The Standard has been adopted by all 34 CEN member states, including the UK (2019), and incorporated into the Danish Building Code.
• It has influenced several daylighting rating schemes, including in the US, Sweden and Ireland.

Adopted by the International WELL Building Standard

• The first Standard to focus “solely on the health and wellness of building occupants”, it is used worldwide.
• It recently adopted the methodology and recommended daylight levels specified in EN17037.

Market transformation

• Many daylight modelling software tools have been upgraded to compute the metrics required for EN17037.
• Eight international dissemination events about EN17037 (September 2018-May 2019) were attended by more than 1,000 delegates, accelerating CBDM skills-uptake.

Settling rights to light (RTL) disputes

• CBDM has been used in several high-profile RTL and daylight injury cases, including New York’s Central Park Tower.

Open Country – Windows (BBC Radio 4)
Professor Mardaljevic discusses the significance of his work with Helen Mark.