Tension Between UK's Immigration Rules, Climate, and Housing Targets Exposes Workers' Rights to Exploitation

The UK Labour government has pledged £39 billion to construct 1.5 million homes in England and £13.2 billion to retrofit five million more across the UK, primarily to increase access to social and affordable housing and reduce carbon emissions. However, these ambitions are threatened by upcoming changes to UK Immigration Rules, which may exacerbate labour shortages and worsen worker exploitation.

Key Takeaways:

• The UK's £39 billion housing plan and £13.2 billion retrofitting effort aim to enhance access to social and affordable housing and reduce carbon emissions, but may be hindered by upcoming changes to Immigration Rules.
• The new Immigration Rules, set to take effect on July 22, 2025, restrict 'low-wage' visa routes and may worsen labour shortages in the construction sector.
• The UK construction industry currently faces a significant labour shortage, driven by Brexit, an ageing workforce, and poor retention rates.
• Existing migration policy is a structural constraint on decarbonisation efforts across the UK, with some parts of the sector accused of exploitative practices, including misclassifying workers, using informal labour, and relying on opaque subcontracting.
• The low number of granted Skilled Worker visas, largely due to high pay thresholds, limited eligible occupations, and administrative burdens on smaller firms, exacerbates labour shortages.
• The July 2025 Immigration Salary List omits key retrofit and housebuilding trades, while the Temporary Shortage List, set to replace it, will include only 23 eligible occupations.
• Labour agencies dominate construction site-based hiring in the UK but cannot sponsor workers themselves, leading to the use of precarious or expired documentation and bogus self-employment.
• Enforcement remains under-resourced, with 0.29 labour inspectors per 10,000 employees, one third of the ILO benchmark, and strains on enforcement teams like the Gangmasters and Labour Abuse Authority.

Statistics:

• £39 billion: The UK Labour government's pledge to construct 1.5 million homes in England.
• £13.2 billion: The UK Labour government's pledge to retrofit five million homes across the UK.
• 25%: The proportion of the UK's total carbon emissions generated by the construction sector.
• July 22, 2025: The effective date for changes to UK Immigration Rules.
• £41,700: The high salary threshold for Skilled Worker visas.
• £23-£35,000: The average salary for construction workers.
• 53: The number of eligible occupations on the Immigration Salary List (ISL) in 2024.
• 23: The reduced number of eligible occupations on the ISL in 2024.
• 0.29: The number of labour inspectors per 10,000 employees in the UK.
• 1: The ILO benchmark for labour inspectors per 10,000 employees.

Sources:

• Institute for Human Rights and Business, "A house divided: the tension between the UK's new Immigration Rules, its climate and housing targets, and workers' rights"
• Centre for European Reform, "The need for a dedicated visa route for construction workers in the UK"
• National Federation of Builders, Construction Industry Training Board
• Overseas Development Institute
• ILO benchmark for labour inspectors per 10,000 employees
• UK Warm Homes Plan
• UK Skilled Worker visa programme
• Immigration Salary List (ISL)