Types of Fire Risk Assessment (UK)

For blocks of flats, fire risk assessments come in four types, numbered one to four, which differ by how much of the building they look at and whether they are destructive. This guide explains the four types and which one applies.

Why there are types

The four type system, set out in PAS 79 and the guidance for blocks of flats, exists because a block has both common areas and individual flats, and because some checks can be done by eye while others need access behind the structure. The type describes the scope.

The four types

1. Type 1. The common parts only, non destructive. This is the most common and the default for most blocks.
2. Type 2. The common parts, with some destructive inspection where there is reason to suspect a problem with the construction.
3. Type 3. The common parts and a sample of flats, non destructive, looking at the arrangements within dwellings as well.
4. Type 4. The common parts and a sample of flats, with destructive inspection. The most thorough and intrusive.

Which one you need

Most blocks start with a Type 1. A higher type is used where the risk profile, the construction or a previous finding means a deeper look is justified. The assessor advises on whether a higher type is needed.

Single premises

For a workplace, shop or single premises rather than a block of flats, you do not use this numbering, you simply carry out the standard five step fire risk assessment for the premises.

Record it

Whatever the type, record the findings and act on them. Our fire risk assessment template suits standard premises and common parts, and our fire risk assessment guide walks through the five steps.