Australia's Construction Skills Crisis: Up to 320,000 Tradespeople Will Retire by 2035

Australia is heading towards a construction workforce cliff. According to workforce modelling based on data from Jobs and Skills Australia and BuildSkills Australia, between 250,000 and 400,000 construction workers are projected to retire by 2035 — representing up to 29% of the entire current workforce of 1.37 million. At the same time, the Federal Government has committed to building 1.2 million new homes by the end of this decade under the National Housing Accord. The arithmetic does not work. And the problem is not simply one of numbers — it is also one of output. The average Australian construction worker today produces significantly less than their counterpart did 30 years ago.

This article examines the scale of the skills crisis, the productivity data behind it, what it means for Australia's housing shortage, and why factory-built modular construction — which still employs trades for site connection, services, and finishing — is the most rational path forward.

The Retirement Wave: What the Numbers Show

Australia's construction workforce is ageing rapidly. Workers aged 55 and over now represent a substantially larger share of the industry than they did two decades ago. Based on current workforce age distribution data from the Australian Bureau of Statistics and BuildSkills Australia's 2025 Workforce Capacity Study, the following retirement projections emerge across three scenarios:

These figures do not account for attrition through injury, career change, or the well-documented low completion rates for construction apprenticeships. The Construction Industry Training Board has noted that apprenticeship completion rates in the sector remain well below those of other industries, meaning the pipeline of replacement workers is thinner than headline enrolment numbers suggest.

Master Builders Australia has estimated that the industry needs an additional 130,000 workers simply to meet the National Housing Accord's 1.2 million home target — before accounting for any retirements. Infrastructure Australia's 2025 Infrastructure Market Capacity Report projected that workforce shortages in metropolitan locations would rise from 131,700 in October 2025 and peak at 148,000 in 2026. Some projections, including reporting by ABC News in November 2025, suggest the construction workforce shortfall for major projects alone could hit 300,000 by mid-2027.

The Productivity Problem: Working More, Building Less

The skills shortage would be challenging enough on its own. But it is compounded by a long-running and well-documented collapse in construction productivity. The data here is stark and comes from some of Australia's most credible institutions.

The Productivity Commission's landmark February 2025 report into housing construction productivity found that physical productivity — measured as the number of dwellings completed per hour worked — has more than halved over three decades. The Australian Industry Group's 2025 research note confirmed that house building productivity has been declining for 20 years and has fallen 24% in volume terms. Oxford Economics, in its August 2025 report on Australian construction, concluded bluntly: "Productivity is worse today than it was in 1990." The average construction worker is building less today than the average worker was building 35 years ago.

The most striking recent data point came from Master Builders Australia in February 2026, when the ABS released its multifactor productivity figures. The building and construction industry had suffered its seventh consecutive year of productivity decline, with productivity now 21.5% lower than it was just over a decade ago. Of Australia's 16 industry sectors, none had seen more productivity wiped out over the past ten years than building and construction.

Research published by the University of Technology Sydney and cited in The Conversation in February 2025 provided a particularly revealing data set: since 2013, the number of workers within Australia's construction workforce has increased by more than 25%. Yet those workers are working 2% fewer hours each year, and achieving an output that is 25.4% lower than the 2013 baseline. More workers, fewer hours, less output.

Why Has Productivity Fallen?

The Productivity Commission identified four key structural factors. First, complex and slow planning approvals — including delayed construction certificates and infrastructure connection delays — add months to project timelines without adding any physical output. Second, the industry has been slow to adopt digital technologies and modern methods of construction. Third, the dominance of very small building firms — 98.5% of Australian construction companies have fewer than 20 employees, according to ABS and RBA research — limits economies of scale and creates supply chain fragmentation. Fourth, difficulties attracting and retaining skilled workers have created persistent labour shortages that constrain output.

Master Builders Australia CEO Denita Wawn has also pointed to enterprise agreement clauses that limit flexibility around rostered days off and give unions effective veto power over subcontractor selection as additional drags on site productivity. The combined effect of these factors is an industry that is structurally less capable of delivering homes at the pace and cost that Australia's housing crisis demands.

Skilled Migration: Adding to Demand, Not Just Supply

A common assumption in the housing debate is that skilled migration will help solve the construction workforce shortage. The reality is more nuanced. Australia's 2026–27 permanent Migration Program allocates 185,000 places, with approximately 132,200 reserved for the Skill Stream. Skilled migrants do bring construction expertise, and targeted visa pathways for tradespeople are a legitimate part of the workforce response.

However, skilled migrants also need housing. Net migration exceeded 500,000 people per year in 2023, and Australia's population has surpassed 27.5 million. Every skilled migrant who arrives — whether a carpenter, electrician, or plumber — needs somewhere to live. The Housing Industry Association has noted that only 174,030 new homes were completed in the last financial year, against an annual need of approximately 240,000. Skilled migration, while necessary for economic reasons, simultaneously adds to the demand side of the housing equation. It cannot be treated as a simple solution to the supply side.

There is a further dimension that is rarely acknowledged in policy discussions: the adaptation period. Skilled migrants arriving in Australia must familiarise themselves with the National Construction Code (NCC), state-specific licensing requirements, local trade practices, and Australian Standards — all of which differ meaningfully from the systems they trained under. A carpenter licensed in the Philippines, a plumber qualified in India, or an electrician certified in the United Kingdom cannot simply begin work on an Australian site. They must undergo skills assessment, licence recognition or re-licensing, and in many cases formal upskilling or bridging courses before they are legally permitted to work in their trade. This process can take months, and in some cases over a year.

During this adaptation period, the worker is not yet contributing to Australia's construction output — yet they are already consuming housing. The productivity benefit of skilled migration is therefore deferred, not immediate. The pipeline of incoming workers does not translate directly into a pipeline of homes being built. And for migrants arriving from non-English-speaking countries, the challenge is compounded further: language barriers slow the process of reading technical documentation, communicating on site, navigating licensing paperwork, and integrating into the existing workforce culture. These are not insurmountable obstacles, but they are real ones — and they mean that the effective contribution of a skilled migrant to the construction workforce typically lags their arrival by a significant margin.

Trades Are Still Essential — The Modular Model Keeps Them Working

It is important to be clear about what factory-built modular construction does and does not replace. Koolark Hömes builds the structural module — the walls, roof, floors, insulation, windows, internal fit-out, and finishes — in a precision factory environment. What it does not replace is the work of licensed tradespeople on site.

Every Koolark home still requires a licensed electrician to connect to the grid, a licensed plumber to connect to water and sewer, a gas fitter where applicable, and a civil contractor for site preparation, footings, and driveway works. Landscaping, fencing, and any site-specific engineering are all performed by local trades. The factory-built module arrives on site ready to connect — but the connection work itself is skilled trade work, performed by skilled tradespeople.

What modular construction does is dramatically reduce the number of on-site labour hours required to deliver a completed dwelling. A conventionally built home in Western Australia typically requires 12 to 18 months of on-site construction time, involving dozens of subcontractors across multiple site visits. A Koolark modular home is delivered and installed in a fraction of that time, with site works typically completed within days of the module arriving. This means that the same pool of skilled tradespeople can service a significantly larger number of completed homes per year — effectively multiplying the productive output of a workforce that is already under pressure.

Precision Manufacturing: A Higher Standard of Build

There is a persistent misconception that factory-built homes are somehow inferior to site-built homes. The evidence points in the opposite direction. Factory conditions allow for a level of precision and quality control that on-site construction cannot reliably achieve. Tolerances are tighter, materials are protected from weather during construction, and every stage of the build is inspected under controlled conditions.

Koolark Hömes builds to a structural standard that includes a 50-year steel frame warranty and Surefoot engineered footings. The homes achieve NatHERS energy ratings of 7 stars and above, with double-glazed aluminium windows, ultra-high-performance insulation, heat recovery ventilation, and solar-ready electrical systems as standard. These specifications exceed what is typically delivered in a conventionally built home at a comparable price point. The build quality is superior precisely because factory conditions allow for precision and consistency that on-site construction cannot reliably replicate — particularly when the on-site workforce is stretched thin across too many projects.

The Only Scalable Answer

Australia cannot build its way out of the housing crisis using the same methods that created it. The construction workforce is ageing and shrinking. Productivity has been declining for three decades. Apprenticeship pipelines are insufficient. Skilled migration adds to demand as well as supply. Planning and approval systems remain slow. The National Housing Accord target of 1.2 million homes by the end of the decade is already falling behind — in the first quarter after the Accord was launched, Australia built 15,000 fewer homes than the required quarterly target of 60,000.

Factory-built modular construction addresses the core constraint directly: it delivers more homes per unit of skilled labour. It does not eliminate the need for tradespeople — it makes each tradesperson more productive by reducing the on-site time required per completed dwelling. It delivers homes to a higher and more consistent quality standard. And it does so in approximately 4 months from contract to installation, compared to 12–18 months for conventional construction.

As Australia's construction workforce faces its most significant generational transition, the industry's response cannot simply be to recruit more of the same. The answer lies in building smarter — and factory-built modular construction is the most immediate, scalable, and practical way to do that.

To learn more about how Koolark Hömes approaches modular construction in Western Australia, read our analysis of Australia's housing crisis and the modular solution, our overview of how modular construction is reshaping Australian residential development, and our guide to modular housing in Western Australia.