Modular and Factory-Built Homes: Are They the Answer to the Affordability Problem?
- Joshua Flack
- Jul 14
- 3 min read
Updated: Jul 28
TL;DR
Modular and factory-built homes promise faster, cheaper construction by building in a factory rather than on site. For investors, they offer a potentially lower-cost path to new build stock, with the new build lending advantages that come with it. But financing prefab is more complicated than a standard build, because of how and when value is created. This post covers the opportunity and the lending reality.
Building a house on site is slow, weather-dependent, and expensive. Building it in a factory should fix all three.
That's the promise of modular and factory-built homes, and it's a real one. For investors, prefab offers a potentially cheaper route to new build stock, which carries the LVR and DTI exemptions that make new builds easier to finance. The catch is that financing prefab isn't as simple as financing a standard build.
The Appeal
Modular and factory-built construction offers:
Faster build times (factory production isn't weather-dependent and runs in parallel with site works)
Potential cost savings from factory efficiency and reduced on-site labour
More predictable quality and cost (controlled factory environment)
New build status, with the financing advantages that brings
In an affordability-constrained market, anything that lowers the cost and time of adding a dwelling is worth attention.
The Lending Complication
Here's where it gets tricky. Standard construction lending releases funds in stages as the build progresses on site, against work that's physically there to value.
Prefab breaks that model. A big chunk of the value is created in the factory, off your site, before anything arrives on your land. The bank's normal security logic, lending against work in place on the property, doesn't fit neatly.
That creates issues:
Banks may be reluctant to fund factory progress payments because the asset isn't on your land yet
The manufacturer often wants substantial payment before or on delivery, ahead of when a bank would normally release funds
This creates a cash flow gap that the borrower has to bridge
Not all lenders handle prefab, and those that do structure it differently. This is the single biggest practical hurdle.
How It Gets Solved
The workarounds exist but need planning:
Lenders who specifically understand and fund modular construction
Manufacturers with payment structures that align with bank funding (or who carry more of the risk until delivery)
Bridging the deposit-to-delivery gap with your own capital or specialist finance
Confirming the lending path before you sign with a manufacturer, not after
The investors who get caught are the ones who commit to a prefab supplier assuming the financing works like a normal build, then discover the payment timing doesn't match what the bank will do.
Does It Solve Affordability?
Partly. Prefab can lower cost and time, which helps. But it's not a magic fix. Land cost (often the biggest component) doesn't change. Compliance, consents, services and site works still apply. The savings are in the build, not the whole project.
It's a useful tool for adding cost-effective new build stock, not a solution to affordability on its own.
Where This Leaves You
Modular and factory-built homes are a genuine opportunity for cost-effective new build stock with new build financing advantages. The technology and the cost case are improving.
But the financing is the catch. Sort the lending path before you commit to a manufacturer, because the factory-versus-site value timing trips up borrowers who assume it works like a standard build. Get that right and prefab is a strong option.
Prefab financing is one of those areas where the wrong assumption costs you the deal. The payment timing has to match what a lender will actually do.
At CRISP, we know which lenders fund modular construction and how to structure the payment timing. Sort the finance first, then choose your manufacturer.
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About the Author:
Joshua Flack is a mortgage and lending adviser and the founder of Crisp Financial. Before finance, he spent two decades running businesses across construction, facilities services, and franchising, which is why his advice starts with how the numbers actually work rather than how the brochure says they should. He works with home buyers, investors, and self-employed borrowers across New Zealand, with particular depth in complex and non-standard lending. Crisp Financial Limited (FSP1012114) operates under the Link Financial Group FAP licence. The information in this article is general in nature and is not regulated financial advice.
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