The government's December 2025 remediation data, published 29 January 2026, reports progress on unsafe cladding in England and a change in how social housing buildings are counted.
Key facts
- Who: Social housing providers and residents of social housing buildings of 11 metres and over in England with unsafe cladding, and anyone following remediation progress
- From: 29 January 2026 (data current at 31 December 2025)
- Source: Building Safety Remediation: monthly data release – December 2025
The Ministry of Housing, Communities & Local Government (MHCLG) published its 98th monthly release on building safety remediation. At the end of December 2025, 4,126 residential buildings of 11 metres and over were identified with unsafe cladding and tracked in the release. That is 1,487 fewer than at the end of November.
The fall is due to a change in data collection and categorisation of social sector buildings. Registered providers of social housing are in the process of moving their records onto a digital platform, the National Remediation System, and are still finishing compiling them. From December 2025 the tracked buildings are those in the ACM programme, those confirmed as eligible for the Building Safety Fund (BSF) or Cladding Safety Scheme (CSS), those reported by developers, and those that registered providers report on the platform as self-funded. The change affects only social housing buildings. Data collection for private residential buildings has not changed.
Around 1,300 social housing buildings have applied to the CSS and are going through eligibility checks. They will be included once confirmed eligible. MHCLG expects many buildings previously reported to be added back over time, so the November and December overall figures are not directly comparable.
Of the 4,126 buildings, 2,168 (53%) have started or completed remediation, and 1,475 (36%) have completed it. MHCLG estimates this is 48-72% of the buildings expected to be remediated in its programmes.
Programme figures at 31 December 2025:
- ACM programme: of 513 high-rise buildings, 498 (97%) have started or completed works and 466 (91%) have completed them. Fifteen have yet to start.
- Building Safety Fund: of 705 high-rise buildings, 551 (78%) have started or completed works, and 459 (65%) have completed them.
- Cladding Safety Scheme: 980 buildings are eligible, 206 (21%) have started or completed works and 67 (7%) have completed them. A further 2,746 are at pre-eligible stages.
- Developer remediation: 2,497 buildings have life-critical fire safety defects that developers have committed to remediate or pay for. Developers report that 1,085 (43%) have started or completed works (developer data as at 31 October 2025).
- Social self-funded: 563 buildings, of which 350 (62%) have started or completed works.
Local authorities have taken or are taking enforcement action under the Housing Act 2004 against 745 buildings over 11 metres with suspected unsafe cladding (as at 19 December 2025), seven more than at the end of November.
MHCLG's estimate, as of January 2025, is that 5,900 to 9,000 residential buildings of 11 metres and over in England have or had unsafe cladding. As of March 2025 it estimates remediation will cost between £11.8bn and £22.7bn. The next release is due at 9.30am on 26 February 2026.
What this means for residents and social housing providers
The figures describe progress across programmes, not any single building. A fall in a headline number can reflect a change in counting rather than a change on site. MHCLG says fluctuations in the social self-funded figures are expected while registered providers finish compiling their records, so the December social housing figures should not be compared directly with earlier releases.
Sources
- Ministry of Housing, Communities & Local Government, Building Safety Remediation: monthly data release – December 2025, published 29 January 2026