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Queensland expands its Cairns modular housing factory

From Modular Living Australia — the independent knowledge base Last updated: 5 Sep 2026

On 27 May 2026 the Queensland Government announced an expansion of QBuild's Portsmith manufacturing facility in Cairns, aiming to lift annual production of modular homes by 40% from 1 July 2026^[1]. QBuild is the state's own builder, and the homes it makes there are social housing and accommodation for frontline workers — not houses a private buyer can order. The reason this belongs on a consumer site is different: it is one of the few places where an Australian government publishes a named list of the modular manufacturers it actually works with.

What was announced §

The Portsmith facility is a Rapid Accommodation and Apprenticeship Centre (RAAC), a QBuild manufacturing site that produces complete modular dwellings alongside sub-assemblies, and doubles as an apprenticeship training site^[2]. The government says the expansion will also support more apprenticeship and training places in the far north^[1].

The stated rationale is geographic rather than economic. Building offsite lets work continue through the wet season, and completed modules are transported and installed when remote communities are safely accessible — which the government presents as a way around severe weather disruption, freight delays and workforce shortages in Far North Queensland^[1]. Locating the factory in Cairns rather than the south-east is described as reducing transport time into the communities the homes are destined for^[1].

What "40%" does and does not tell you §

The figure is a target, not a result, and it is stated as a percentage without a baseline.

The one output figure published is that 30 homes have been completed since manufacturing began at the facility in 2024^[1]. No annual production rate is given for the year before the expansion, and no post-expansion target number of homes is published. That means the 40% cannot responsibly be converted into a number of additional homes per year — the arithmetic would depend on a baseline the government has not stated.

Treat it as a direction of travel from a small base, which is what the published figures support, rather than as a volume commitment.

Who actually builds these homes §

This is the part with practical value. The department publishes the manufacturers engaged under a Standing Offer Arrangement for the MMC program — 11 named suppliers, plus 7 more identified through an open tender expression of interest to join progressively as the pipeline requires^[2].

Names as published by the Queensland Department of Housing and Public Works, page last updated 23 July 2026^[2].

What that list means is narrower than it looks. A company on it has satisfied a government procurement process for government work. That is a form of scrutiny, and it is publicly recorded, which is more than can be said for most claims a builder makes about itself. It is not an endorsement, it says nothing about how the company performs on private residential contracts, and it is not a substitute for checking the company's current licence and insurance yourself — see checking a prefab builder's licence and insurance.

Companies recorded as operating in Queensland are listed separately in our Queensland builder directory, which is compiled from published sources and not independently verified. The government list above is its own source and can be checked directly.

What this means for a private buyer §

Very little in the short term, and it is worth being clear about that rather than implying otherwise.

• You cannot buy one. QBuild builds for the state. There is no private sales channel, no waiting list to join and no price list.
• It does not change approval rules. Nothing here alters what a private modular build in Queensland requires — that is covered in modular home rules and approvals in Queensland.
• It is a demand signal, not a supply one. Government orders occupy factory capacity. In the far north, where the government describes private-market capacity as limited^[1], a state-owned factory adds capacity rather than competing for it — but the homes it produces are allocated, not sold.

The indirect effect worth watching is on the supplier side. A named group of manufacturers building repeat standardised designs at volume is how a factory sector gets to scale, and that is the mechanism by which government programs eventually touch private prices — slowly, and not in a way any single announcement can be credited for.

What is not covered here §

• Baseline and target volumes. No pre-expansion annual output figure or post-expansion target is published, so the 40% cannot be expressed in homes.
• Cost. No capital cost for the expansion is stated in the sources compiled here.
• Whether the target has been met. The increase was to take effect from 1 July 2026. No production figures since that date have been published in the sources compiled here.
• Private-market pricing effects. Nothing in these sources measures any effect on what a private modular home costs in Queensland.
• The named suppliers' standing. Inclusion on the government list is recorded here as published. Current licence status, financial standing and private-work performance have not been verified for any company named.

References §