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Dutyholders

Changes to building regulations legislation in 2023 formally created 'dutyholders', who are legally responsible for building regulation compliance. The information here explains what has changed.

Commencement of work

BCS must be informed of the date on which your project is expected to reach a ‘commenced’ stage and; where the work does not involve the erection of a new building or horizontal extension, details of the work that is considered to equate to 15% of the proposed works. This information has to be included in the application form.

We must still be notified:

  • of an intention to start work at least two working days before the work stats
  • not more than five days after the date to which work is considered to have ‘commenced’

‘Commenced’ has different meanings depending on the type of work. 

See definitions in the government legislation: starting on site and commencement of work.