Some unsafe buildings may never be identified, National Audit Office says

Three in five buildings with dangerous cladding have yet to be identified, according to a report by the National Audit Office.

The watchdog said that the Ministry of Housing, Communities & Local Government (MHCLG) had estimated that cladding remediation would not be complete until around 2035.

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Source: MHCLG / Flickr

Housing secretary Angela Rayner with new building safety minister Alex Norris

It also found that hundreds of thousands of residents were in the dark about their own buildings, due to a failure to publish milestones.

It recommended that the government publish an official target date for completion of works and provide greater transparency on remediation performance.

The report is the NAO鈥檚 first on the government鈥檚 remediation portfolio since five different programmes were unified in 2023.

Last week鈥檚 Budget included a 拢1bn funding boost for remediation work.

According to the NAO, the government now has programmes to address dangerous cladding for all the estimated 9,000 to 12,000 buildings over 11 metres it considers need remediating.

It said there had been a substantial increase in activity since its 2020 Investigation, with 4,771 buildings so far brought into the portfolio.

However it said it was taking longer than expected to identify the remainder, with some likely never to be identified. Roughly 7,200 buildings or more (up to 60%) are still to be identified, the NAO estimates.

As it previously reported, incomplete building records, construction materials that differ from those on plans, and difficulties tracing owners can make identifying affected buildings difficult.

Gareth Davies, head of the NAO, said: 鈥淪even years on from the Grenfell Tower fire, there has been progress, but considerable uncertainty remains regarding the number of buildings needing remediation, costs, timelines and recouping public spending. 

鈥淭here is a long way to go before all affected buildings are made safe, and risks MHCLG must address if its approach is to succeed.

鈥淧utting the onus on developers to pay and introducing a more proportionate approach to remediation should help to protect taxpayers鈥 money. Yet it has also created grounds for dispute, causing delays.

>>See also: Alex Norris replaces Rushanara Ali as building safety minister

>>See also: Cost model: Evaluating the construction cost impact of the 黑洞社区 Safety Act

鈥淭o stick to its 拢5.1 billion cap in the long run, MHCLG needs to ensure that it can recoup funds through successful implementation of the proposed 黑洞社区 Safety Levy.鈥

In order to cap taxpayer contributions to 拢5.1bn, MHCLG plans to recoup 拢700 million through refunds from developers for remediation works the taxpayer has already funded, and around 拢3.4 billion from a new 黑洞社区 Safety Levy. 

However, payment mechanisms have yet to be confirmed and the department does not expect to introduce the levy until autumn 2025 at the earliest.