What is the golden thread of building information?

The golden thread is the concept introduced by the Building Safety Act requiring that key building information is created, maintained and passed on throughout the lifecycle of a higher-risk building. It includes design and construction records, fire safety information, structural information, maintenance records and any changes made to the building. The golden thread must be accessible, accurate and up to date, and must be stored digitally. It provides the evidence base that supports the building safety case.

Managing a Building Safety Case: Practical Guide | Hampstead Chartered Surveyors & Building Consultancy

Q: What is a building safety case?

A building safety case is a structured collection of evidence and analysis that demonstrates how building safety risks are being identified, assessed and managed for a higher-risk building. It includes the safety case report, which sets out the risk assessment and the measures in place to manage those risks, together with supporting documents such as fire risk assessments, structural appraisals, maintenance records and resident engagement evidence. The safety case must be kept up to date throughout the life of the building.

Q: Who is responsible for the building safety case?

The accountable person for a higher-risk building is responsible for preparing and maintaining the building safety case. In practice, this is usually the freeholder or building owner. Where there are multiple accountable persons, the principal accountable person has overall responsibility. The accountable person may appoint a building safety manager to carry out day-to-day management, and may engage consultants to support the preparation of the safety case, but the legal duty remains with the accountable person.

Q: What happens if the Building Safety Regulator inspects?

The Building Safety Regulator can request to see the building safety case at any time. If the regulator is not satisfied that the risks are being properly managed, it can issue compliance notices, take enforcement action or, in serious cases, prohibit the occupation of the building. The quality of the safety case documentation, the evidence of ongoing risk management and the responsiveness of the accountable person are all factors the regulator will consider.

Overview

Building the safety case

The Building Safety Act requires accountable persons to prepare and maintain a safety case for every higher-risk building. This means assembling a structured body of evidence demonstrating how building safety risks are identified, assessed and managed throughout the building's lifecycle.

The golden thread

The golden thread of building information is the foundation of the safety case. It requires that key design, construction, maintenance and safety information is created, maintained and stored digitally throughout the building's life. For many existing buildings, the challenge is retrospectively assembling this information from incomplete records, previous consultants and managing agents.

The safety case report

The safety case report is the document that brings the evidence together. It sets out the building's fire and structural risks, the measures in place to manage those risks, the monitoring and maintenance regime, and the evidence that the regime is being followed. A visual structural appraisal and fire risk assessment are key supporting documents.

Ongoing management

The safety case is not a one-off exercise. It must be reviewed and updated whenever there is a material change to the building, a significant safety incident, or new information that affects the risk profile. The accountable person must ensure that the building safety manager has the competence, resources and authority to manage the safety case on a day-to-day basis.

Common gaps and challenges

The most common gaps are missing or incomplete construction records, inadequate fire risk assessments, no systematic approach to recording and tracking safety-related works, and uncertainty about accountability within multi-stakeholder ownership structures. Addressing these gaps early is significantly less costly than responding to regulatory enforcement.

FAQ

Frequently asked questions

What is a building safety case?

A structured collection of evidence and analysis demonstrating how building safety risks are being identified, assessed and managed. It includes the safety case report and supporting documents such as fire risk assessments and structural appraisals.

What is the golden thread?

The requirement to create, maintain and pass on key building information throughout the building's lifecycle. It must be accessible, accurate, up to date and stored digitally.

Who is responsible for the building safety case?

The accountable person, usually the freeholder or building owner. They may appoint a building safety manager for day-to-day management, but the legal duty remains with them.

What happens if the Building Safety Regulator inspects?

The regulator can request the safety case at any time and may issue compliance notices, enforcement action or prohibit occupation if risks are not properly managed.

Next Steps

Managing a Building Safety Case: Practical Guide