Section 20 Application
Section 20 is a section of the London Building Acts (Amendment)
Act, 1939. It is concerned primarily with the danger arising from
fire within certain buildings which, by reason of height, cubical
extent and/or use, necessitate special consideration. Section 20
applies where:
- a building is to be erected with a storey or part of a storey
at a greater height than (i) 30 metres; or (ii) 25 metres if the
area of the building exceeds 930 square metres
- a building of the warehouse class, or a building or part of a
building used for the purposes of trade or manufacture, exceeds
7,100 cubic metres in extent unless it is divided by division walls
in such manner that no division of the building is of a cubical
extent exceeding 7,100 cubic metres
Download the Section
20 application form [PDF file] (file size 809Kb)