Remediation Portfolio

Infrastructure and Construction

Record date: 31 March 2026

Whole-life cost: £9.7bn
Published schedule: 26/06/2023 – 31/03/2036
NISTA delivery confidence: RED
Senior responsible owner: Jamie Cowling

What the project is for

The Remediation Portfolio’s overarching strategic objective is to bring all buildings over 11 metres affected by unsafe cladding up to the minimum life-safety standard quickly, completely, proportionately and consistently. Its objectives are to identify all affected buildings, remediate them at pace and ensure those responsible pay, thereby protecting the taxpayer. These objectives are underpinned by four operating principles: supporting residents, remediating to the right standards, delivering value for money and taking a risk-based approach. Remediation funding above the Government’s capped £5.15bn contribution will be recouped from industry.

Departmental delivery commentary

While delivery is set to accelerate, with more buildings expected to start remediation during this Parliament than prior to 2024/25, the SRO Delivery Confidence Assessment (DCA) rating at 25/26 Q4 decreased to Red. This reflects risks to pace and affordability which are constraining delivery against planned timelines, including higher-than-anticipated social housing volumes, Building Safety Regulator constraints impacting progression of works, the need to accelerate delivery through developers and anticipated construction cost inflation. As a result, delivery against the Remediation Acceleration Plan and within the 2025 Full Business Case assumptions remains challenging. Targeted action is underway, including increasing Gateway 2 throughput, strengthening delivery planning with social sector partners, and working with developers to improve pace. Developer cost recovery activity is progressing, alongside preparations for the Building Safety Levy launch (October 2026). As of March 2026, 4,322 buildings over 11 metres have been identified with unsafe cladding, representing an estimated 50–76% of all buildings that will require remediation as part of MHCLG’s remediation programmes. For the 4,322 buildings identified with unsafe cladding, remediation has started on 2,399, including 1,531 that have been completed and 868 now on site. A further 1,923 buildings are in the programme but have not yet started on site.

Schedule

There has been no change to the schedule for the programme.

Cost

The WLC has increased by £104m following the Spending Review outcome and adjustments for inflation in real terms. This update includes a lower estimated number of buildings but higher per building costs, which has slightly increased the estimate.

Benefits

Exempt under Section 22 - Information intended for future publication