The Fire Safety Order requires you to review your assessment “regularly” and immediately whenever there is reason to suspect it is no longer valid. That is deliberately not a fixed number, but it is not an excuse to never look again either.
Our rule of thumb
- Annually for most premises as a baseline
- Every 6–12 months for sleeping-risk buildings, care homes, HMOs, hotels
- Immediately after a refit, a change of layout, a material increase in occupancy, a change of use, or a fire
A “review” does not always mean a full new assessment, but it does mean a competent person checking that nothing has changed to invalidate the current one, and recording that they did. If something significant has changed, the review becomes a reassessment.