False alarms in
Harrow.

27th of 33
in London.

London Fire Brigade attended 833 automatic fire alarm (AFA) false alarms in Harrow in 2025. That is 1.8% of the London total and places it 27th of 33 areas. They made up 32.8% of everything the Brigade attended in the borough, close to the London figure of 34.1%. The count is not adjusted for population or for the number of buildings.

The 2025 total was 44 lower than in 2024 (-5.0%). The highest year in the series was 2024, with 877, and the lowest was 2020, with 643.

From 1 January to 31 July 2026 the Brigade attended 483 AFA false alarms in Harrow, against 462 in the same dates of 2025 (+4.5%, a smaller rise than London’s +10.0%). 2026 is a part year and should not be set against a full one.

Daytime attendance
at workplaces: -52.6%.

Since 29 October 2024 London Fire Brigade has not attended automatic fire alarms at most non-residential buildings between 07:00 and 20:30 unless a person also calls 999 to report a fire. Homes, schools, hospitals and the other premises on its exemption list still get a response at any hour.

In the year before London Fire Brigade changed its response on 29 October 2024, it attended 154 AFA false alarms at non-residential buildings in Harrow between 07:00 and 20:30. In the year after it attended 73 (-52.6%). That is close to the London figure of -53.4%. Residential attendances, which the policy does not affect, rose from 620 to 720 (+16.1%) over the same two years.

Mostly homes,
not workplaces.

Homes and other residential buildings account for 698 of the 833 (83.8%). Non-residential buildings account for only 16.2%, below the London figure of 23.8%. The property type with the most was “Purpose Built Flats/Maisonettes - 4 to 9 storeys” (142, 17.0% of the borough total), followed by “Self contained Sheltered Housing” (125). The same type leads across London.