Who Will Build Britain’s 1.5 Million Homes? The UK Construction Skills Gap Report 2026

Executive Summary

The UK government has committed to delivering 1.5 million new homes by the end of this Parliament, alongside major programmes in infrastructure, energy and retrofit. The single biggest obstacle to delivering any of it is people.

According to the Construction Industry Training Board’s (CITB) Construction Workforce Outlook 2026–2030, published in June 2026, the industry needs an extra 41,200 workers every year between 2026 and 2030 — around 206,000 additional workers in total — just to meet forecast demand. That would take the UK construction workforce to approximately 2.68 million by 2030.

The key findings of this report:

• The workforce is ageing faster than it is being replaced. Over a third of construction workers are aged over 50, while only around 20% are under 30. More than 320,000 skilled workers have left the sector since 2019.
• Vacancies remain stubbornly high. There are close to 40,000 open vacancies in UK construction, with the most acute shortages in electricians, plumbers and carpenters.
• The apprenticeship pipeline is growing but remains far short of need. Construction apprenticeship starts rose 7.7% in the 2025/26 academic year to date, yet starts would need to roughly triple to meet the industry’s annual recruitment requirement.
• Employer engagement is the weak link. Only around 21% of construction businesses employ an apprentice, and just 10% employ more than one.
• Government has responded with a £600m training package targeting 60,000 additional skilled workers by 2029 — a meaningful intervention, but one that covers less than a third of the additional workers CITB says the industry needs over the same period.

The conclusion is uncomfortable but unavoidable: on current trajectories, the workforce will not grow fast enough to deliver the government’s housing target on time. Closing the gap requires action on three fronts simultaneously — recruitment, retention and productivity.

1. The Scale of the Problem

The headline numbers

CITB’s Construction Workforce Outlook 2026–2030 forecasts that construction output will grow over the five-year period, with activity subdued in 2026 before recovering from 2027 onwards. To meet that demand, the industry requires an additional 41,200 workers per year — equivalent to 1.6% of the 2025 workforce, every year, for five years.

Encouragingly, that figure is down from the 47,000 per year cited in CITB’s previous outlook, reflecting softer short-term demand. But the direction of travel should not be mistaken for the problem solving itself. CITB’s own assessment is stark: too few people are entering the sector, too many experienced workers are leaving, and productivity improvements have not been sufficient to close the gap.

A demographic time bomb

The deeper issue is structural. The construction workforce is old and getting older:

• Approximately 35% of workers are over 50, while only around 20% are under 30.
• More than 320,000 skilled workers have left the industry since 2019, driven by early retirement and career changes.
• Construction employment in early 2025 remained more than 340,000 below its 2019 peak and over 500,000 below the pre-financial-crisis high of 2008.

Every experienced tradesperson who retires takes decades of practical knowledge with them. Replacing that worker with a new entrant is not a one-for-one swap: a newly qualified apprentice takes years to reach the productivity of the worker they replace. The industry is therefore losing capacity even in years when headcount holds steady.

The Brexit effect

Before the UK left the EU, EU and EEA nationals were estimated to make up 8–12% of the construction workforce nationally — and substantially more in London and the South East, where some estimates put the figure above 25% in central London. The post-Brexit immigration system has significantly reduced this labour supply, removing the flexibility that previously allowed the industry to absorb demand spikes. That safety valve is gone, and domestic training has not yet expanded to compensate.

2. Where the Shortages Bite Hardest

By trade

There are currently close to 40,000 open vacancies across UK construction. The most critical shortages are in the core building services and finishing trades:

• Electricians — demand amplified by net zero retrofit, EV charging infrastructure and grid-connected housing.
• Plumbers and heating engineers — with heat pump installation targets adding a new skills dimension to an already stretched trade.
• Carpenters and joiners — consistently among the hardest roles to fill on housebuilding sites.
• Bricklayers — CITB data shows the average age of bricklayers rising year on year, making this one of the trades most exposed to retirement attrition.

Wage data tells the same story from a different angle: construction wage growth has been running above 7% year on year — well ahead of the wider economy — reflecting persistent structural tightness rather than temporary demand.

By region

Demand varies considerably across the UK, reflecting differences in project pipelines, sector mix and workforce age profiles:

• Greater London needs an extra 1,510 professional and technical workers each year — equivalent to 2.3% of its 2025 workforce, the highest proportional demand for these roles in the country.
• England as a whole requires an additional 14,940 skilled tradespeople and site-based workers every year to 2030.
• Growth is forecast across all devolved nations and all nine English regions, but the pace and sector mix differ markedly — meaning regional skills planning matters as much as national policy.

CITB’s interactive Construction Workforce Outlook tool (citb.co.uk/cwo) allows employers to drill into forecasts for their own nation, region and occupation, and is worth bookmarking for anyone doing workforce planning.

3. The Apprenticeship Pipeline: Is It Enough?

The good news

The pipeline is finally moving in the right direction. In the 2025/26 academic year to date (August 2025 to January 2026), apprenticeship starts in Construction, Planning and the Built Environment rose 7.7% to 20,860. Across all sectors, apprenticeship starts in England were up 11.9% and achievements up 16.2% over the same period.

Diversity among new entrants is also improving, albeit from a low base. Women accounted for over 15% of new construction apprenticeship entrants in 2025, up from under 10% a decade ago — though women still represent only 1–2% of the manual on-site workforce.

The gap

Set against the scale of need, however, the pipeline remains badly undersized. Industry analysis suggests apprenticeship starts would need to roughly triple from current levels of around 33,000 per year to meet the sector’s annual recruitment requirement once retirements and leavers are accounted for.

The bottleneck is not solely a shortage of willing young people. It is a shortage of places:

• Only around 21% of construction businesses employ an apprentice.
• Just 10% employ more than one.

In an industry dominated by small firms, this is the structural weakness. Most SME contractors cite cost, administrative burden, and the difficulty of guaranteeing continuous work for a trainee as reasons not to take on apprentices. Until the economics of hosting an apprentice work for a five-person firm, no amount of demand-side enthusiasm will fill the pipeline.

Retention matters as much as recruitment

The sector replaces nearly 8% of its workforce each year through churn — retirements, moves to other industries and natural turnover. A recruitment strategy that pours new entrants into a leaking bucket will fail. Employers that invest in progression pathways, flexible working patterns and site culture are measurably better at holding on to the workers they train.

4. What’s Being Done: The Policy Response

The £600m skills package

In March 2025, the Chancellor announced a £600m investment to train up to 60,000 additional skilled construction workers by 2029, explicitly tied to the 1.5 million homes target. The package breaks down as follows:

• £100m for 10 new Construction Technical Excellence Colleges, focused on advanced technical training in trades and engineering, which opened from September 2025 and aim to train over 40,000 people by 2029.
• £165m to help existing colleges expand construction course provision.
• £100m to expand Construction Skills Bootcamps, serving new entrants, career returners and workers looking to upskill.
• £100m of government funding, plus a £32m CITB contribution, for over 40,000 industry placements per year for Level 2 and Level 3 learners.
• £40m for new foundation construction apprenticeships (launched August 2025), including a £2,000 incentive for employers for every foundation apprentice they take on and retain, on top of fully funded training through the new Growth and Skills Levy.
• £20m for Local Skills Improvement Plan (LSIP) areas to build partnerships between colleges and construction employers and increase the number of teachers with real industry experience.

Oversight sits with the new Construction Skills Mission Board, co-chaired by government and industry, with Mace’s Mark Reynolds in the industry co-chair role. Wider labour market programmes — the Youth Guarantee and Jobs Guarantee — add further routes for young people into work, and Skills England’s workforce projections identify construction as the highest-growth government priority sector.

Does the funding match the gap?

The honest answer: it helps, but it does not close the gap. The package targets 60,000 additional trained workers by 2029; CITB’s forecast requires roughly 206,000 additional workers by 2030. Even if every funded place converts into a long-term construction career — which historical completion and retention rates suggest is optimistic — the majority of the required workforce growth must come from elsewhere: better retention, returners, career changers, and productivity gains.

The £2,000 foundation apprenticeship incentive is a step towards fixing the SME hosting problem, but at that level it offsets only a fraction of the real cost of carrying a trainee. Expect industry pressure for deeper employer-side support as the housing programme ramps up.

5. The Changing Shape of Construction Work

The skills gap is not just a volume problem — it is a composition problem. As the industry digitises and industrialises, the skills mix is shifting:

• Digital roles are growing fastest. Demand for BIM managers, digital planners, data-literate surveyors and off-site manufacturing specialists is rising as construction becomes increasingly data-driven.
• Modern Methods of Construction (MMC) change where the workers are needed. Off-site manufacturing moves labour demand from muddy sites to factory floors — potentially opening the industry to people who would never have considered site work, including a broader gender and age demographic.
• Net zero creates entirely new trades. Heat pump installation, retrofit assessment, EV infrastructure and renewable energy connection all require accredited skills that barely existed a decade ago — and the retrofit market alone represents decades of future work on the existing housing stock.

This cuts both ways. Technology can partially substitute for scarce labour — modular schemes are claimed to reduce on-site labour requirements by significant margins — but it also demands a workforce with hybrid trade-and-digital skills that the current training system is only beginning to produce.

6. Conclusions and Recommendations

The 1.5 million homes target is not deliverable on the current workforce trajectory. The arithmetic does not work: an industry that needs 41,200 additional workers a year, with an apprenticeship pipeline running at roughly a third of required capacity and a demographic profile skewed towards retirement, cannot simply be funded into delivering a step change in output by 2029. Policy has moved in the right direction, but the timeline is unforgiving — a worker starting training today will not be fully productive until the end of the decade.

For contractors, especially SMEs, the practical implications are:

1. Take the apprenticeship incentives seriously. With £2,000 foundation apprenticeship payments, fully funded training via the Growth and Skills Levy, and CITB grants, the economics of hosting a trainee have never been better. Firms that build their own pipeline will be less exposed to wage inflation than those competing in the open market for scarce trades.
2. Plan for wage inflation in tenders. With wage growth above 7% in shortage trades, contracts priced on last year’s labour rates carry real margin risk. Build labour escalation into pricing and programmes.
3. Invest in retention before recruitment. With 8% annual churn, keeping an experienced worker is far cheaper than replacing one. Progression pathways, training investment and site culture are commercial issues, not HR niceties.
4. Upskill for the digital and net zero transition. The trades and roles growing fastest — retrofit, heat pumps, BIM, off-site — are where margins will be strongest and competition for work weakest. Position now.
5. Use the regional data. CITB’s Workforce Outlook tool provides occupation-level forecasts by region. Match your recruitment and training plans to where your pipeline actually is.

For policymakers, the priorities are equally clear: fix the SME hosting economics that keep four in five construction firms out of the apprenticeship system; align immigration policy with genuinely critical shortage trades while domestic capacity builds; and treat retention and returner programmes with the same urgency as new entrant recruitment.

Britain can build 1.5 million homes. But only if it builds the workforce first — and on the evidence of 2026, that race is currently being lost.

Sources

• CITB, Construction Workforce Outlook 2026–2030 (June 2026) — citb.co.uk/cwo
• Construction News, coverage of CITB Workforce Outlook (June 2026)
• Department for Education, Apprenticeships: Academic Year 2025/26 — Explore Education Statistics
• HM Treasury, £600m construction skills package announcement (March 2025)
• Department for Education, Construction Technical Excellence Colleges announcement (2025)
• Skills England workforce projections
• Office for National Statistics, construction employment and vacancy data
• Industry analysis of construction workforce demographics and wage trends (2025–2026)