Building Safety in 2026: The Golden Thread Is Now a Commercial Issue

Building safety is no longer simply a technical issue for architects, engineers and building control professionals. It is increasingly a contractual and commercial issue for everyone involved in a construction project.

The Building Safety Act 2022 fundamentally changed the regulatory environment for higher-risk buildings.

In 2026, those changes continue to develop.

The Building Safety Regulator became a standalone organisation in January 2026, and the Government and regulator continue to refine the higher-risk building regime.

For businesses involved in construction, development, design and property management, one message is becoming increasingly important:

Documentation matters.

What is a higher-risk building?

For building control purposes in England, higher-risk buildings generally include buildings that are at least 7 storeys or 18 metres high and contain at least two residential units, as well as hospitals and care homes meeting the relevant criteria.

Where the regime applies, building control approval from the Building Safety Regulator is required before relevant building work starts.

That changes the way projects need to be planned.

The "golden thread" is more than a phrase

One of the important concepts introduced by the Building Safety Act regime is the golden thread of information.

In practical terms, the people responsible for a building need reliable information about how it was designed, constructed and subsequently changed.

That means information cannot simply disappear into:

"the project folder"

and remain there indefinitely.

The information needs to be capable of being understood, maintained and used by the appropriate people.

Why should lawyers care?

Because contractual responsibility and regulatory responsibility increasingly overlap.

Consider a relatively simple example.

A contractor is instructed to change part of the design during a project.

The project team may regard it as a commercial variation.

But if the change affects a safety-critical element, it may have regulatory consequences as well.

The Building Safety Regulator's guidance makes clear that changes to an approved higher-risk building project need to be assessed and recorded. Major changes require BSR approval before they are made.

The legal question is therefore not simply:

"How much will the variation cost?"

It may also be:

"What does this change mean for the building's regulatory compliance and the information that must be maintained?"

Better record keeping can reduce disputes

Good documentation is often viewed as an administrative burden.

In reality, it can be valuable evidence.

Suppose a dispute arises three years after completion concerning:

• a design change;

• responsibility for a particular element;

• the specification of materials;

• an installation decision; or

• who authorised a variation.

The answer may depend on what the project records show.

A clear audit trail can be considerably more persuasive than recollections several years later.

The regulator is also looking at proportionality

There is an important balance to be struck.

In July 2026, the Government published its response concerning proposals to improve the proportionality of the higher-risk building control regime.

The stated objective is to maintain robust safety oversight while avoiding unnecessary administrative burdens and delays.

That is significant for businesses.

Compliance does not mean creating paperwork for its own sake.

The objective should be to create accurate, usable and proportionate information.

Five questions for construction businesses

If you work on higher-risk building projects, ask:

1. Who is responsible for creating the relevant information?

2. Who checks it?

3. Where is it stored?

4. How are changes recorded?

5. Will someone unfamiliar with the project be able to understand the records in five or ten years' time?

   
   

If the answer to any of those questions is unclear, there may be a project-management issue as well as a legal one.

The contract needs to reflect the regulatory environment

Construction contracts should not be drafted in isolation from the regulatory framework.

Depending on the project, contractual provisions may need to address matters such as:

• design responsibility;

• information requirements;

• competence;

• approval procedures;

• changes and variations;

• record keeping;

• cooperation with regulatory requirements;

• access to information; and

• responsibility for non-compliance.

  
  

The precise requirements will depend upon the nature of the project and the parties involved.

Construction law is changing

The modern construction lawyer is increasingly required to understand more than contractual clauses.

Construction law now sits alongside:

building safety + regulation + project management + information management + commercial risk.

For developers and contractors, that means legal advice should ideally begin before the project becomes contentious.

At Pure Business Law, we advise businesses on construction contracts, risk allocation, project documentation, variations and construction disputes.

If you are involved in a higher-risk building project, reviewing the contractual and regulatory responsibilities at the outset can help prevent much more expensive problems later.

This article is for general information only and is not legal advice. The Building Safety Regulator's requirements can depend on the nature of the building and the work being undertaken.