Question to the Home Office:

To ask the Secretary of State for the Home Department, whether her Department holds information on the number of serious fires in buildings that may have been prevented by the installation of sprinklers over the last five years; and if she will make a statement.

The Home Office collects data on incidents attended by Fire and Rescue Services (FRSs). This data is published in a variety of publications, available here: Fire statistics - GOV.UK (www.gov.uk)

Data is collected on FRS incidents attended through the Incident Recording System (IRS). However, this database does not hold information on incidents prevented. Records are not held as to how many serious fires were prevented due to the presence of a sprinkler system.

The IRS holds data on fire incidents in buildings, including whether a safety system, such as sprinklers, were installed. This is available here:
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1096397/other-building-fires-dataset-110822.ods