The crisis surrounding reinforced autoclaved aerated concrete (RAAC) is intensifying across the UK, impacting not just public buildings and schools but also residential properties. This follows our previous blog last year, which highlighted the emerging concerns about RAAC and its potential risks.

RAAC, a lightweight concrete commonly used between the 1950s and 1990s, is prone to sudden collapse as it ages, leading to severe safety concerns and costly interventions.

Residential Impact and Government Response

One of the most significant residential impacts has been in Aberdeen, where over 500 homes — including 366 council and 138 private residences — have been identified as containing RAAC.

Aberdeen City Council has approved a large-scale demolition and rebuilding programme expected to cost over £150 million, with the demolition alone estimated to take four years and with a cost of up to £25 million​.

This decision has sparked outrage among residents, many of whom feel abandoned. Homeowners have voiced fears over losing their homes and have held protests demanding stronger support and clearer communication from the authorities. Negotiations between Aberdeen City Council and the Scottish Government are ongoing to secure the funding required for this redevelopment project​.

Broader Implications Across the UK

The RAAC problem extends far beyond Aberdeen’s residential properties. It has been discovered in over 600 schools, prompting emergency closures and urgent repairs. Alarmingly, RAAC has also been found in the Houses of Parliament, compounding the historic site's maintenance challenges, which already include asbestos removal and fire safety upgrades.

Additionally, the crisis affects other public buildings such as hospitals, theatres, and parts of the transport network. Network Rail is currently reviewing its estate for RAAC risks but anticipates limited exposure due to the age of its properties. Nonetheless, the widespread presence of RAAC across various sectors underscores the urgent need for a nationwide review.

Labour Government’s Response

The recently appointed Prime Minister, Sir Keir Starmer, has recently declared that rebuilding hospitals constructed with RAAC will be a top priority. This comes amid growing concerns about the safety of these facilities. During a Prime Minister’s Questions session, Starmer emphasised the need to overhaul the new hospital program, citing previous government failures to deliver on promises of new hospitals. Stating that he is committed to ensuring that hospitals affected by RAAC are prioritised in the government’s review of the hospital program.

A notable example is the Queen Elizabeth Hospital (QEH) in Lynn, which has faced delays in its rebuild due to a government review ordered by Chancellor Rachel Reeves. A local MP has voiced frustration over the lack of progress and is urging the government to commit to completing the new QEH by 2030 to alleviate growing community concerns.

Public Reaction and the Way Forward

The RAAC crisis has highlighted significant gaps in building safety oversight and has sparked calls for greater government transparency and swift action. The Labour government’s challenge now is to implement its strategy effectively, securing the safety of residents, students, and staff across the UK while restoring public confidence in the nation’s infrastructure.