Building Bulletin 101 (BB101) is a second-tier document referred to in statutory Building Regulations documentation (Approved Documents Part L and Part F in particular). This means that school designs must comply with BB101 to demonstrate compliance with Building Regulations, and so any changes to the document can have a significant impact on the design, procurement, and construction of school buildings. BB101 has just been revised (September 2018), with the previous edition dating from 2006.

To read more about these changes in the document relating to indoor air quality, winter thermal comfort and summer thermal comfort, download the document here.