Britain's Cladding Remediation Bottleneck Explained
The government's monthly building safety data releases tend to generate a familiar kind of coverage. Completions are reported, and progress is noted. As more buildings edge closer towards remediation, the positive impact is acknowledged. And, while that framing certainly isn't wrong, there is certainly more to the story.
The May 2026 Building Safety Remediation data release, published by the Ministry of Housing, Communities and Local Government (MHCLG), contains numbers that deserve more attention. Not because the situation is worse than reported, but because if your building is still waiting for remediation, the progress figures don't tell you much about where you stand.
The Headline Figure Most Overlooked
38% of monitored buildings have completed remediation. That's real progress, and it should be celebrated. However, it’s important to look at the other end of the same dataset.
Of the 4,411 residential buildings 11 metres and over currently being monitored by MHCLG, 2,080 (aka 47%) have not yet started remediation works. That’s nearly half.
These are not buildings that are unknown or unaccounted for. They are buildings already inside a government programme, already identified, and being tracked. However, they’ve still not started on site.
That gap, between identified and in progress, is where the real story sits.
What "In Programme" Actually Means
It's easy to read "in programme" and assume a building is moving forward at a reasonable pace. In practice, we know that the journey from identification to works starting on site is long, multi-staged, and can stall at any point.
For remediation works to begin, a building typically needs to move through a visual survey, a Fire Risk Appraisal of External Walls (FRAEW), an initial funding application, a pre-tender support funding process, design team assembly, a full funding application, contractor procurement, legal due diligence, and (for buildings over 18 metres) Gateway submissions under the Building Safety Act.
Each stage requires specialist input. Each stage takes time. And the sector, unfortunately, does not have enough specialist teams capable of managing that process competently.
That is the hidden capacity problem. While it isn't loudly reported, it is real, and the monthly data we’ve just seen reflects it.
The Cladding Safety Scheme Pipeline: Where The Pressure Is Building
The Cladding Safety Scheme (CSS) is the primary government funding route for residential buildings between 11 and 18 metres, and for higher buildings where the Building Safety Fund is no longer applicable. It’s the programme through which the largest remaining share of remediation works will flow.
The May data shows 1,325 buildings are now confirmed as eligible for the Cladding Safety Scheme, an increase of 86 buildings in a single month. But of those 1,325 eligible buildings, only 367 (28%) have either started or completed works on site. 72% of eligible buildings haven't broken ground yet.
Of those that have started, only 112 buildings (8% of all eligible CSS buildings) have completed remediation.
And these eligible buildings are only part of the picture. A further 2,179 buildings are currently in the pre-eligible stages of the CSS: 1,234 progressing through eligibility checks, and 945 in the pre-application stage. These buildings are working their way towards eligibility. When they arrive, they’ll join a queue that is already substantial.
CSS eligibility is a milestone, not the finish line.
The Buildings Not Yet In The System At All
The monitored pipeline (4,411 buildings) is itself only a portion of the full picture.
MHCLG estimates there are between 5,900 and 7,400 residential buildings 11 metres and over in England that have or had unsafe cladding requiring work. The 4,411 currently being monitored represent an estimated 61–76% of all buildings expected to be remediated through government programmes. Which means an estimated 1,400–2,900 buildings expected to require remediation haven't yet been confirmed as eligible for a programme.
Some are in early engagement, and some will have owners who are uncertain what's required of them, or who haven't yet initiated the process. Some are buildings where the responsible party hasn't yet taken steps to establish eligibility.
These buildings are not counted in the monthly progress figures. Their owners may not feel the urgency that the situation justifies.
The Funding Is There, But It has A Limit
MHCLG estimates the total cost of remediating all affected residential buildings in England at between £11.8bn and £22.7bn. Government programmes are expected to fund between £6.7bn and £15.2bn of that total.
Under current plans, MHCLG will have an estimated £9.2bn available for remediation: comprising a £5.2bn Exchequer contribution, an estimated £0.7bn in developer refunds, and a £3.4bn Building Safety Levy revenue target.
The Building Safety Levy remains in development. The funding envelope, while substantial, is not open-ended. For buildings yet to enter a programme, what the funding landscape looks like in two or three years, as the pipeline becomes more congested and specialist capacity remains constrained, is certainly a reason not to delay.
What This Means If Your Building Hasn't Started Yet
For RTM directors, managing agents, freeholders and building owners managing buildings that haven't yet begun the remediation process, this monthly data should prompt a clear-eyed assessment of where you stand.
The queue is long. Specialist capacity for surveyors, principal designers, and experienced remediation managers is limited. Buildings that are well-prepared, with documentation in order and the right expertise engaged early, tend to move faster. Buildings that stall in the early stages can lose months, if not more.
We say this not to alarm you, but to highlight the importance of staying on top of your project.
A Note On Where Archway FM Fits
As an RICS-regulated cladding remediation management consultancy, we work with RTMs, managing agents, freeholders and industry partners (including fire engineers and property professionals) to manage the full remediation journey.
To date, we have secured over £120 million in Cladding Safety Scheme funding through Homes England, with a 100% success rate on eligible applications, and have helped make more than 850 homes safe.
If you're uncertain where your building sits in the process: whether that's at the pre-application stage, awaiting eligibility confirmation, or already CSS-eligible and trying to understand what comes next, we're happy to talk things through with you.
Get in touch with the Archway FM team.
Sources
Ministry of Housing, Communities and Local Government. Building Safety Remediation: Monthly Data Release (May 2026). Overall Remediation Progress. Published 24 June 2026:https://www.gov.uk/government/publications/building-safety-remediation-monthly-data-release-may-2026/building-safety-remediation-monthly-data-release-may-2026-accessible-version#overall-remediation-progress
Ministry of Housing, Communities and Local Government. Building Safety Remediation: Monthly Data Release (May 2026). Estimated Cost of External Wall System Remediation:https://www.gov.uk/government/publications/building-safety-remediation-monthly-data-release-may-2026/building-safety-remediation-monthly-data-release-may-2026-accessible-version#estimated-cost-of-external-wall-system-remediation-of-11m-residential-buildings-in-england