Understanding Cladding Issues and Mortgages
Following the Grenfell Tower tragedy in 2017, the safety of external wall systems on residential buildings came under intense scrutiny. Thousands of buildings across the UK were found to have potentially unsafe cladding, and lenders became reluctant to offer mortgages on properties in affected buildings.
The key issues that affect mortgage lending include:
- Aluminium Composite Material (ACM) cladding — The type of cladding involved in the Grenfell Tower fire. Buildings with ACM cladding that has not been remediated are effectively unmortgageable with most lenders.
- Other forms of unsafe cladding — Including High Pressure Laminate (HPL), rendered insulation systems, and timber cladding. The risk level depends on the specific materials, the building height, and the overall design of the external wall system.
- Missing or inadequate fire breaks — Even without combustible cladding, buildings may have issues with missing fire barriers or cavity barriers that allow fire to spread through external wall systems.
- Balcony construction — Some buildings have balconies constructed with combustible materials, which can also affect fire safety assessments.
For mortgage purposes, the critical question is whether the building has been assessed as safe and, if not, what remediation plans are in place.
EWS1 Forms: What You Need to Know
The EWS1 (External Wall System) form was introduced in December 2019 as a standardised way of assessing the fire safety of external wall systems on residential buildings. It provides lenders and valuers with a clear indication of whether a building is considered safe for mortgage purposes.
Who needs an EWS1 form?
The requirements have evolved over time. Initially, EWS1 forms were required for a very wide range of buildings, but the guidance has since been narrowed. As of the latest guidance from the Royal Institution of Chartered Surveyors (RICS):
- Buildings below 11 metres (roughly four storeys) generally do not require an EWS1 form unless there are known concerns about the external wall system.
- Buildings between 11 metres and 18 metres may require an EWS1 form depending on the construction and materials used.
- Buildings over 18 metres (roughly six storeys) are more likely to require an EWS1 form, particularly if they have any form of cladding system.
EWS1 ratings explained:
The EWS1 form uses a simple rating system:
- A1 — No combustible materials in the external wall. No further action required.
- A2 — Combustible materials present but in limited quantity. No remediation required.
- A3 — Combustible materials present but with adequate fire safety provisions in place. No remediation required.
- B1 — Combustible materials present and remediation or mitigation works may be needed. A further risk assessment is recommended but the building can still be occupied.
- B2 — Combustible materials present and remediation is required. This is the most problematic rating for mortgage purposes.
Most lenders will accept properties with A1, A2, or A3 ratings without issue. A B1 rating is more challenging but some lenders may still consider it. A B2 rating makes it very difficult to obtain a mortgage until remediation is complete.
The Building Safety Act and Leaseholder Protections
The Building Safety Act 2022 introduced important protections for leaseholders in buildings affected by cladding and other fire safety issues.
Key protections for leaseholders:
- Buildings over 11 metres — Qualifying leaseholders in buildings over 11 metres are protected from costs associated with the remediation of historical building safety defects, including the removal and replacement of unsafe cladding.
- Building Safety Fund — The government's Building Safety Fund provides financial support for the remediation of buildings over 11 metres with unsafe cladding.
- Developer responsibility — Major housebuilders have signed contracts committing to fix life-critical fire safety defects in buildings they developed that are over 11 metres.
- Responsible Actors Scheme — Developers who do not sign up to the remediation contract face restrictions on building control approval and other consequences.
What this means for remortgaging:
The leaseholder protections under the Building Safety Act are positive for remortgaging because they reduce the financial liability on leaseholders for remediation costs. This has made some lenders more willing to consider properties in affected buildings, particularly where there is a clear remediation plan and timeline.
However, the situation remains complex, and lender attitudes vary. Some lenders are now willing to lend on buildings with a B1 EWS1 rating where remediation is planned, while others still require remediation to be complete before they will offer a mortgage.