Golden thread: what the Act requires, and what people mean when they borrow the term

“Golden thread” has escaped its enclosure. It now turns up in proposals for factories, warehouses and office refurbishments, usually meaning something like good records, kept digitally. That is a fine thing to want. It is not what the term means, and using it loosely in front of somebody who works under the regime tells them how close to it you have been.

What it is

The golden thread is the digital record of information about a higher-risk building, required under the building safety regime introduced by the Building Safety Act 2022. The government’s own guidance calls it a building’s “single source of truth” and sets requirements for the information itself. Kept digitally. Secure from unauthorised access. Available when someone needs it. And presented so a person can use it, “in a simple format that is easy to understand and written in plain English”.

Who holds it depends on the phase. During design and construction it runs through the client, the principal designer and the principal contractor. In occupation it sits with the accountable person, or the principal accountable person where there is more than one, who must provide it to the Building Safety Regulator, to other accountable persons, to residents and leaseholders, and to the fire and rescue authority.

Whether you hold one

Almost certainly not, if you are an industrial or institutional organisation. The definition is worth knowing precisely, because it differs between the two phases.

For design and construction, a higher-risk building is at least 18 metres in height or has at least 7 storeys, and contains at least two residential units, or is a hospital, or is a care home. For occupation, hospitals and care homes drop out. The building must contain at least two residential units, and wholly-occupied hospitals, care homes, secure residential institutions, hotels and military barracks are excluded. In occupation those buildings are already covered by the Regulatory Reform (Fire Safety) Order 2005.

A factory is not a higher-risk building. Neither is a warehouse, a laboratory, a workshop, or an office block of any height. If a supplier offers you golden thread compliance for a manufacturing site, they are either using the phrase loosely or selling you a duty you do not have. Establish which before the conversation goes further.

What does apply to you

This is the part that gets missed while everyone argues about terminology. Alongside the higher-risk regime, the Building Regulations etc. (Amendment) (England) Regulations 2023 inserted a dutyholder and competence regime into the Building Regulations themselves. It has been in force since 1 October 2023 and it applies to all building work in England, with limited exceptions for exempt and minor work.

So when your organisation commissions building work of any kind, it is the client in a defined legal sense. The client must make suitable arrangements for planning, managing and monitoring the project, including allocating sufficient time and resource, to ensure compliance with the relevant requirements. The client must also satisfy itself that the designers and contractors it appoints are competent for what they are being appointed to do.

A manufacturer putting up a new production hall has no golden thread duty and a real dutyholder duty. In our experience the second is the one nobody has read.

The principle, which is worth having anyway

Strip out the statutory meaning and a good idea remains. Information about a building or an asset that is current, accountable, findable, and in a state somebody could use in an emergency. That is worth adopting whether or not a regulation compels it, and it is close to what ISO 19650 describes for information management generally.

Adopt the principle by all means. Just do not call it the golden thread, and do not let anyone sell it to you as a legal obligation you do not have. Borrowed regulatory language is a poor foundation for a business case. The first competent question dissolves it.