The Building Safety Act: What It Means for Construction Tendering in 2026
The Building Safety Act 2022 received Royal Assent in April 2022 and has been progressively implemented since — with its most significant provisions now fully in force. Introduced following the Grenfell Tower fire in June 2017, the Act fundamentally changed how higher-risk buildings are designed, constructed, and managed. For contractors, developers, and construction professionals tendering for public sector work, it has materially changed what buyers expect to see in a tender response.
This guide covers what the Building Safety Act introduced, the current implementation status of its key provisions, and what it means specifically for how you write and evidence construction tender responses in 2026.
What the Building Safety Act Introduced
The Building Safety Regulator
The Act established the Building Safety Regulator (BSR) — operating within the Health and Safety Executive — as the new national oversight body for building safety. The BSR has three primary functions: overseeing the safety and standards of all buildings, directly regulating higher-risk buildings (HRBs), and monitoring and improving the performance of the building control profession.
The BSR is now fully operational. Its creation represents a permanent shift in how building safety oversight works in England — from a fragmented system of local authority building control and approved inspectors to a nationally overseen regime with a single accountable regulator for the highest-risk building category.
The higher-risk building definition
Higher-risk buildings (HRBs) are defined as buildings that are at least 18 metres in height or seven storeys or more, and contain at least two residential units. This definition covers a significant proportion of multi-storey residential development — new build and existing stock. For construction contractors, this means any tender for work on a building meeting this definition is subject to the full HRB regime, including the gateway process described below.
The gateway regime
The most significant operational change for construction contractors is the three-gateway regime — mandatory checkpoints in the planning and construction process for all higher-risk buildings. Work cannot proceed past each gateway without regulatory approval from the Building Safety Regulator.
Gateway 1 applies at the planning application stage — ensuring that fire safety is considered from the outset of design. Gateway 2 applies before construction begins — requiring submission of detailed building control documentation, including fire and structural safety information, to the BSR for approval before work starts. Gateway 3 applies at completion — the building cannot be registered or occupied until the BSR has assessed the completed building against the approved plans and issued a completion certificate.
For construction tenders, the gateway regime has direct implications. A tender response that does not demonstrate the contractor’s understanding of and capability to manage the gateway process — including the documentation requirements at each stage and the implications of delays in regulatory approval for the programme — will be seen as insufficiently engaged with the current regulatory reality.
Duty holder roles
The Act introduced defined duty holder roles for all building work, modelled on and extending the CDM Regulations 2015 framework. For higher-risk buildings, these roles carry enhanced obligations — the Principal Designer and Principal Contractor must register with the BSR and must fulfil specific duties in relation to the design and construction phase documentation.
In a construction tender for HRB work, demonstrating that your organisation has the capability to fulfil the Principal Contractor duty holder role — or a clearly described approach to discharging these duties if appointing a dedicated duty holder — is now a standard expectation rather than an advanced credential.
The golden thread of information
The Act introduced the concept of the “golden thread” — a continuous, digital record of building safety information that must be created during design and construction and maintained throughout the building’s life. For new HRBs, this golden thread must be established from Gateway 2 and maintained through completion and into occupation.
For construction contractors, this means demonstrating in tender responses a specific approach to golden thread information management — the systems used to capture and maintain building safety information, the format and accessibility of that information, and how it will be handed over to the building owner at completion. General references to BIM or document management systems are insufficient unless specifically connected to golden thread compliance.
Extended limitation periods
The Act extended the limitation period for claims under the Defective Premises Act 1972 from six years to thirty years for existing buildings, and fifteen years for new buildings. This extended retrospective liability is relevant to construction tender responses addressing quality assurance and long-term accountability — buyers of residential development and housing association clients in particular will be interested in how contractors approach quality standards given this extended liability horizon.
Building products regulation and cladding
The Act introduced new powers to regulate construction products and strengthened enforcement against dangerous products. Following Grenfell, the use of combustible cladding on higher-risk buildings is banned, and the Act created new routes for enforcement and cost recovery against those responsible for historical cladding defects. For contractors tendering for remediation or refurbishment work, demonstrating specific knowledge of compliant cladding and external wall systems — and a clear process for product specification and approval — is essential.
What the Building Safety Act Means for Construction Tender Responses
Health and safety responses have substantially raised standards
Quality questions on health and safety in construction tenders have always been significant. The Building Safety Act has raised the expected standard further — particularly for any tender involving higher-risk buildings. A generic health and safety management statement that does not address the Act’s specific duty holder requirements, gateway obligations, and golden thread provisions will be assessed as inadequate for HRB work.
Your health and safety response for any HRB tender must now address: your organisation’s experience of the gateway regime and specifically Gateway 2 documentation requirements; your approach to fulfilling or supporting the Principal Contractor duty holder role; your golden thread information management system; your process for product specification and approval under the updated construction products regime; and your health and safety performance record on comparable higher-risk projects.
Technical methodology must reference gateway compliance
Your methodology response for any HRB project must demonstrate a clear understanding of how the gateway regime affects programme planning — including the realistic timescales for BSR approval at Gateway 2, the risk of programme delay if documentation is incomplete at submission, and your approach to maintaining programme momentum through the approval period. Buyers commissioning HRB construction work have learned — through the experience of projects since the gateway regime came into force — that contractors who underestimate or ignore gateway timescales create significant programme risk. Your methodology must show you understand this and have planned for it.
Evidence requirements are more specific
Case studies for construction tenders involving higher-risk buildings now need to demonstrate specific Building Safety Act compliance experience — not just general construction track record. A case study from a comparable HRB project that references the gateway process, the duty holder arrangements, and the golden thread approach is significantly more compelling than a general high-rise residential case study that predates the Act’s implementation.
If your case studies all predate the gateway regime (which came fully into force in April 2024), describe how your organisation has adapted its processes to comply — what internal training has been undertaken, what systems have been implemented, and what your approach will be on this project given the new requirements. Our guide to writing case studies for tenders covers how to address evidence gaps like this credibly.
Supply chain management is more heavily scrutinised
The Act’s product regulation provisions and the cladding remediation context mean buyers are more attentive than ever to how construction contractors manage their supply chains. A tender response that addresses supply chain management only in general terms — “we work with approved suppliers” — is insufficient. Describe specifically how you approve and audit subcontractors and product suppliers, how you ensure construction products meet current regulatory requirements, and how you would manage a supply chain issue that affects safety-critical elements of the build.
Social value and resident engagement
The Act gave residents of higher-risk buildings enhanced rights — to information about their building’s safety, to raise concerns, and to participate in safety decisions. For contractors delivering residential construction or refurbishment work in occupied buildings, demonstrating a clear resident engagement approach — not just a construction phase communication plan but a genuine framework for responding to resident safety concerns — is increasingly expected in quality responses. Our guide to social value and tendering covers how resident engagement commitments can be developed into scoreable quality content.
Frequently Asked Questions About the Building Safety Act and Tendering
Does the Building Safety Act apply to all construction tenders or only higher-risk buildings?
The most significant provisions — the gateway regime, duty holder roles with enhanced obligations, and the golden thread — apply specifically to higher-risk buildings (18 metres or seven storeys or more, with at least two residential units). However, the Act also introduced broader changes to the building control regime and construction product regulation that affect all building work. Even for non-HRB construction tenders, demonstrating awareness of the updated regulatory landscape — and updated product compliance processes — is increasingly expected by buyers.
When did the gateway regime come into full force?
Gateway 2 and Gateway 3 for higher-risk buildings came into force in April 2024. Any new HRB project starting construction after this date requires Gateway 2 approval from the Building Safety Regulator before work begins. Gateway 1 (planning stage) was implemented earlier, in August 2023. Projects that started before these dates may be subject to transitional arrangements — check the BSR’s guidance for the specific position on any transitional project.
What is the golden thread and how does it affect tender responses?
The golden thread is the continuous digital record of building safety information — design decisions, specification changes, product approvals, and safety-critical documentation — that must be maintained from the start of construction through the building’s operational life. In a tender response, it means demonstrating specifically what system you will use to capture and maintain this information, who is responsible for it, how it will be updated through the construction process, and how it will be handed over at completion. General references to BIM or document management are not sufficient — the golden thread has specific content requirements set out in the Higher-Risk Buildings (Management of Safety Risks etc) (England) Regulations 2023.
How does the Act affect tenders for remediation of existing buildings?
Remediation tenders — particularly for cladding and external wall systems on existing higher-risk buildings — are subject to the Act’s provisions and are among the most heavily scrutinised construction tenders in the current market. Buyers commissioning remediation work will expect specific evidence of experience with compliant external wall systems, familiarity with the EWS1 assessment process, and a detailed approach to managing residents during remediation works in occupied buildings. The extended limitation periods under the Defective Premises Act mean buyers are also more attentive to long-term quality accountability than in pre-Act procurements.
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About the author: Written by Joshua Smith, a seasoned bid-writing expert with experience across the UK, Middle East and US, helping organisations secure the contracts they deserve through high-quality, competitive tender responses.