The housing health and safety rating system (HHSRS) is a risk-based evaluation tool to help local authorities identify and protect against potential risks and hazards to health and safety from any deficiencies identified in dwellings. It was introduced under the Housing Act 2004 and applies to residential properties in England and Wales.
The HHSRS assesses 29 categories of housing hazard. Each hazard has a weighting which will help determine whether the property is rated as having category 1 (serious) or category 2 (other).
An operating guidance addendum on the assessment of high-rise residential buildings with cladding systems was published on 29 November 2018.