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Glossary

Building safety terms in plain English

Definitions are a general guide, not legal advice.

Accountable Person (AP)
The person or organisation that owns or has a repairing obligation for the common parts of a higher-risk building. Accountable Persons must assess and manage building safety risks under the Building Safety Act 2022.
Principal Accountable Person (PAP)
The Accountable Person responsible for the structure and exterior of a higher-risk building. The PAP registers the building with the Building Safety Regulator and prepares the safety case report.
Higher-risk building (HRB)
In England, a building at least 18 metres tall or with at least 7 storeys, containing at least 2 residential units.
Building Safety Regulator (BSR)
The regulator set up under the Building Safety Act 2022, part of the Health and Safety Executive, that oversees the safety and standards of buildings and registers higher-risk buildings.
Golden Thread
The accurate, up-to-date digital information about how a higher-risk building was designed, built and is managed, and the system used to keep it secure and accessible for the building’s whole life.
Safety case report
A report prepared by the Principal Accountable Person that identifies a higher-risk building’s major fire and structural hazards and explains how they are being managed.
Mandatory Occurrence Reporting (MOR)
The duty to report safety occurrences that could cause a significant risk to life in a higher-risk building to the Building Safety Regulator.
Responsible Person
Under the Regulatory Reform (Fire Safety) Order 2005, the person in control of premises who must carry out a fire risk assessment and put fire safety measures in place.
Fire Risk Assessment (FRA)
A structured review of a building’s fire hazards, the people at risk and the measures in place, which the Responsible Person must carry out and keep under review.
FRAEW
A Fire Risk Appraisal of External Walls, carried out to PAS 9980 to assess the fire risk of a building’s external wall construction.
EWS1
The RICS External Wall Fire Review form, used by lenders and valuers to confirm whether a building’s external wall system has been assessed.
LGSR
A Landlord Gas Safety Record: the annual gas safety check record required under the Gas Safety (Installation and Use) Regulations 1998.
EICR
An Electrical Installation Condition Report, which records the condition of a building’s fixed electrical installation and any defects found.
DSEAR
The Dangerous Substances and Explosive Atmospheres Regulations 2002, which require risks from flammable and explosive substances to be assessed and controlled.
Awaab's Law
Requirements for social landlords in England to investigate and fix damp, mould and other serious hazards within set timescales, named after Awaab Ishak.
HHSRS
The Housing Health and Safety Rating System under the Housing Act 2004, which assesses hazards in homes by likelihood and severity of harm.
CompliScore
The Complitas evidence-based risk rating for a building, from Very Low to Very High, built from every required check and the evidence behind it.
Building Safety Management Pack (BSMP)
The Complitas document that consolidates every compliance check for a property into one report, with CompliScore on the front page and evidence attached.
RMC / RTM
A Resident Management Company or Right to Manage company: a company run by leaseholders that manages the building and may be an Accountable Person.
Average clause
An insurance condition that reduces a claim in proportion when a building is insured for less than its rebuild cost.

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