From PAS 9980 to Statute: What the Remediation Bill Adds to External Wall Assessment

Most coverage of the Remediation Bill has focused on a few key elements: hard deadlines, unlimited fines, and manufacturer liability. The provision that will most reshape how engineers assess external wall fire risk in England is the one that has barely been reported.

The Bill, as announced, will mandate a nationally consistent methodology for the assessment of external walls. That is not, on its own, the introduction of a methodology. PAS 9980:2022 has been the recognised approach for several years and is already required by the major funded remediation programmes. What the Bill changes is the legal status of that methodology – and the duty pairing it sits within.

This article is about what that legal change adds to the existing picture, and what building owners, managing agents, lenders and leaseholders should be doing about it now.

Where External Wall Assessment Already Sits in Law

The starting point matters. Several layers of legal duty and professional practice already govern external wall fire risk assessment in England, well before the Remediation Bill arrives.

The Fire Safety Act 2021

The Fire Safety Act 2021 amended the Regulatory Reform (Fire Safety) Order 2005 to clarify that, for any multi-occupied residential building, the Responsible Person’s fire risk assessment duty includes the structure, the external walls (including cladding, insulation, balconies and windows), and flat entrance doors between domestic premises and the common parts. External wall fire risk assessment is therefore already a legal duty under fire safety law for Responsible Persons in in-scope residential buildings. The FSA 2021 did not prescribe how that assessment must be conducted.

PAS 9980:2022

In practice, PAS 9980:2022 – the Publicly Available Specification for the fire risk appraisal of external wall construction and cladding in existing residential buildings, published by BSI in 2022, has filled that methodological gap. PAS 9980 codifies the methodology and sets the competence expectations in Section 8 and Annex H. It has been the recognised approach for FRAEW for several years.

The Funded Routes

The Cladding Safety Scheme, the Building Safety Fund and the Developer Remediation Contract all require a PAS 9980-compliant FRAEW as part of their eligibility and application process. For any building going through a funded remediation route, PAS 9980 compliance has been the operational requirement for several years.

The Building Safety Act 2022 & Competence

The Building Safety Act 2022 and its associated secondary legislation already require fire risk assessors to be competent for their task. BS 8674:2025, published by BSI on 15 August 2025, provides a structured competence framework defining three levels (Foundation, Intermediate, Advanced) with corresponding building risk profiles.

The picture is therefore not one of a regulatory vacuum. It is one of an existing legal duty (FSA 2021), an existing methodology (PAS 9980), existing operational requirements for funded routes, and existing competence frameworks. The market has matured significantly since 2019. Sophisticated clients have been operating against this framework for years.

What the Remediation Bill does is consolidate that picture – and put a new legal architecture around it.

What the Bill, As Announced, Adds

The briefing papers published alongside the King’s Speech describe the Bill as introducing “consistent external wall assessment procedures in law.” Read alongside the existing picture, four additions are likely.

Universal Application

PAS 9980 is the operational requirement for funded routes and the recognised methodology for professional practice. It is not, today, statutorily required for every in-scope assessment. As announced, the Bill will likely require all in-scope buildings to follow the methodology – PAS 9980 or its statutory successor – regardless of whether a funding application is involved.

Statutory Force

PAS 9980 is a Publicly Available Specification, not a statutory instrument. Funder requirements, lender and insurer expectations, and the professional standing of the assessor currently drive compliance. The Bill is likely to give statutory force, with regulator enforcement, to what is today a matter of professional standards and contractual due diligence.

Codified Competence

Competence is already a legal expectation under the Building Safety Act 2022 regime, and is already operationalised through PAS 9980 Section 8, BS 8674:2025, and the membership requirements of bodies such as RICS and the Institution of Fire Engineers. The Bill is likely to codify the competence threshold in primary law – naming the framework, rather than leaving it to be inferred.

A Duty to Remediate, Paired with the Duty to Assess

This is arguably the most significant legal change. The Fire Safety Act 2021 created a duty to assess external walls. The Remediation Bill, as announced, creates a duty to remediate unsafe cladding within a statutory deadline – backed by unlimited fines, criminal sanctions, and regulator backstop powers. Pairing the existing assessment duty with a new remediation duty is the genuine legal innovation. The methodology consolidation is what makes that pairing operable.

The exact provisions will only be known when the Bill text is laid before Parliament. But the direction of travel is clear: external wall assessment is moving from a matter primarily of professional practice and funder requirement to a matter of statute.

What an Evidence-Led Assessment Looks Like Today

In advance of the statute, the methodology most likely to align with what the Bill codifies is the one that already follows PAS 9980:2022 in full – the same methodology that funded routes have required for years.

An evidence-led FRAEW typically includes:

Documentation review. Original construction drawings, building regulations approvals, refurbishment records, fire safety documentation, and any prior EWS1 outputs together with their underlying basis.
Physical inspection. Visual survey of the external wall system in accessible locations, supported where necessary by intrusive opening up to verify the actual construction against the documented record.
Material identification. Identification of all materials in the external wall system – primary cladding, insulation, cavity barriers, fire stopping, attachments – and verification of fire performance classifications.
Risk appraisal under PAS 9980. Application of the PAS 9980 methodology to assess the likely fire performance of the external wall in the context of the building’s height, occupancy, escape arrangements, and the wider fire safety strategy.
Conclusion and recommendation. A clear, defensible conclusion expressed in PAS 9980 terms, with a recommended remediation scope where required, and a clearly stated basis for that recommendation.

This is not new ground. It is the methodology recognised by CROSS-UK, required by funded routes, and expected by lenders working to RICS guidance. What the Bill is poised to do is make it the floor, not the recommended approach.

The Economics of Commissioning Now

Three commercial points worth being direct about.

Sub-PAS 9980 assessments are a diminishing asset. Assessments commissioned outside the PAS 9980 methodology already carry limited weight with funded routes, lenders, insurers and increasingly with professional bodies. When the Bill makes PAS 9980 (or its successor) the statutory floor, those assessments will need to be redone for any building seeking to demonstrate compliance with the new duty.

A rigorous FRAEW is the foundation of the manufacturer’s cost-recovery route. The Bill, as announced, simplifies the route by which freeholders, developers and contractors can recover costs from manufacturers of unsafe construction products under section 148 of the Building Safety Act 2022. That recovery is only as strong as the evidence trail behind it, which begins with the FRAEW.

Lenders and insurers already price assessment quality. Where two FRAEWs exist on the same building, the rigorous one consistently drives better mortgage and insurance outcomes than the brief one. The codification of methodology in statute will harden this further.

What to Ask of Your Assessor

The questions to ask of any assessor commissioning a FRAEW are not new. They are the questions sophisticated clients have been asking for several years. The Bill makes them harder to avoid.

Is the assessor demonstrably competent against PAS 9980 Section 8 and Annex H requirements, and where applicable against BS 8674:2025?
Are they a member of a relevant professional body – RICS, the Institution of Fire Engineers, or equivalent – with documented external wall assessment training?
Does the methodology follow PAS 9980:2022 in full?
Does the scope include documentary review, physical inspection, and material verification – not visual inspection alone?
Is the report defensible in writing? Meaning, will it stand if challenged by another competent assessor, a lender, or, increasingly, by a regulator?

If the answer to any of those is not a clear yes, the post-Bill environment will likely dismantle the commissioned report, just as a sophisticated funder, lender, or insurer would likely have challenged it successfully today.

The DALA Surveys View

DALA Surveys conducts Fire Risk Appraisals of External Walls to PAS 9980:2022 across England, Scotland and Wales. Qualified engineers conduct every assessment against the recognised methodology, with documented competence and a clear evidence trail.

That has been the position since PAS 9980 became the recognised standard. The forthcoming Remediation Bill consolidates and codifies what is already best practice – it does not unsettle it. For building owners working with DALA Surveys today, the new statutory methodology is the floor, not the ceiling.