Construction Loans for Modular Homes: How Factory Builds Get Funded
Construction loans for modular homes: what lenders pay during the factory build, what they hold before installation, and how prefab homes are valued.
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Modular Home Construction Loans · Factory Stages · Security Before Installation
A modular home is mostly built before it reaches your land, and that is the part a construction lender is least comfortable paying for. Here is how the money moves from factory deposit to installation, what the lender holds at each stage, and where self-employed owners get stuck.
Quick Answer
Self-employed owners and small developers can get a construction loan for a modular home, but most lenders pay only part of the contract while the home sits in the factory and hold back the balance until it is installed on your land. The lender's comfort comes from the land, the builder and the contract, so those three decide the deal more than the home's design. See how standard construction finance works, or how we place project builds through development finance.
Also called: prefab home loan, modular construction loan, factory-built home finance. They describe the same lending; a transportable home is a different security question, covered below.
Can you get a construction loan for a modular or prefab home?
You can get a construction loan for a modular or prefab home in Australia, but fewer lenders offer one, and the ones that do run it on different rules from a home built on site. A modular home is mostly built before it reaches your land, and that is exactly the part a construction lender is least comfortable paying for. Everything else in this insight follows from that one fact.
The lenders in this space fall into three groups. One major bank runs a dedicated prefab product for manufacturers it has assessed. Other banks look at modular builds case by case, often only where the home arrives late in the build and most of the money is spent on site. A number of non-bank lenders and specialist funders will fund factory stages, particularly where the project is business purpose, such as rental cabins or a small group of dwellings, and sits closer to development finance than a home loan.
For a self-employed borrower the income side is no different from any other construction loan: the lender wants to see that you can carry the interest during the build and the full repayment afterwards, on full financials, BAS or an accountant letter depending on the product. Our self-employed construction loan guide covers that evidence in detail. In practice, the first question on a modular file is not your income. It is the builder and the contract.
Is a prefab home loan different from a modular construction loan?
A prefab home loan and a modular construction loan are usually the same product under two names, but the build method changes how the lender pays. Volumetric modular homes arrive as finished boxes with kitchens and bathrooms already fitted, so most of the cost is spent off site. Panelised or kit homes arrive as wall and roof panels and are assembled on your land, so more of the money follows normal stages. Ask the builder which method it uses before you speak to a lender, because the answer changes the payment schedule the lender will accept.
Why don't factory build stages fit normal progress payments?
Factory build stages don't fit normal progress payments because a standard construction loan is designed to pay for work that is already attached to the lender's security. On a site-built home, each progress claim (base, frame, lock-up, fixing, completion) is checked by a valuer standing on your land, and each drawdown adds value to the property the lender holds a mortgage over.
A modular build turns that around. The footings and site works are a small share of the cost. The frame, cladding, wiring, plumbing, joinery and finishes are done in a factory that may be hundreds of kilometres away, on a site the lender holds no security over. Most of the home is built before it reaches your land, so if the lender paid on the usual schedule, its money would leave well before its security improved.
Builders, meanwhile, need cash early. A factory buys materials and books production slots in advance, so modular contracts often ask for larger deposits and earlier milestone payments than a site builder would. That gap between what the builder wants and what a standard lender will release is the whole problem. Our guide to progress claims and drawdowns explains the standard model, and our post on drawdown and progress payment timing covers what slows a claim down.
Lender pays during the factory build
- Part of the contract paid during the factory build; the share varies by lender
- Usually limited to manufacturers the lender has assessed
- Amount often capped by your equity in the land
- Builder's cash flow is covered, so fewer delays
Lender pays only once installed
- Factory deposits and milestones come from your own cash
- Or the builder carries the cost and prices that risk in
- Your cash is unsecured until the home lands
- The full loan only starts once the home is on site
How do lenders pay a modular builder while the home is in the factory?
Lenders that fund modular builds release a limited share of the contract against factory milestones while the home is in the factory, then pay the balance once the home is installed on your land. The life of a typical build runs in this order, although every contract and lender sets its own stages.
- Contract and deposit. You sign a fixed-price contract and pay a deposit. Most lenders want the deposit to come from your own funds, and the contract to be one they accept; see what makes a building contract acceptable to a lender.
- Site works. Footings, slab or piers and service trenches are prepared on your land, often by a separate contractor. These are paid more like a normal progress claim.
- Factory milestones. The modules move through frame, enclosure, services and fit-out in the factory. A lender with a modular product pays part of the contract during the factory build (the share varies by lender), usually against a milestone certificate and photos or an inspection at the factory.
- Transport and delivery. The modules travel by truck and are lifted onto the footings by crane. This is the riskiest few days of the build, and transit insurance matters.
- Installation and connection. The modules are fixed down, joined, weatherproofed and connected to water, power and sewer.
- Final inspection and completion. The home is fixed, connected and inspected before the balance is released, typically with an occupancy or completion certificate and a final valuer inspection at practical completion.
Lenders with a dedicated modular product tend to follow the same shape. During off-site construction they fund the lesser of a share of the build contract or an amount set by your equity in the land, often at a higher share for manufacturers they have assessed, then release the balance once the home is fixed, connected and inspected. Before the home is fixed, the land is the only security. Other lenders run similar tests with different limits, and some pay nothing until the modules are on site.
A contract that ties each payment to a defined factory milestone, rather than a date on the calendar, makes the lender's job easier, because every release is matched to a stage someone can check. If the builder's standard contract runs on dates, ask whether it can be changed before you apply.
| Stage | Where the home is | What the lender typically pays | What the lender holds |
|---|---|---|---|
| Contract and deposit | Not started, or in the factory queue | Usually nothing; the deposit comes from your funds | A mortgage over the land |
| Factory build milestones | In the factory, off your land | A limited share of the contract, set by each lender and manufacturer; some lenders pay nothing here | The land only |
| Transport and delivery | On a truck, then on a crane | Often a delivery milestone, depending on the lender | The land, plus the builder's transit insurance |
| Installation and connection | On your footings, being joined and connected | Most or all of the balance, once inspected | The land and the home as it becomes fixed |
| Final inspection and completion | Finished, certified and connected | Any retention, then the loan converts to standard repayments | The completed property |
What security does a lender hold before the modules reach your land?
Before the modules reach your land, the lender holds a mortgage over the land and nothing else. The home in the factory belongs to the build, not to the loan. That is why lenders cap what they pay off site, and why your own position during those weeks deserves as much attention as the lender's. In our own files, the questions that matter most at this stage are about the builder, not the borrower.
- What if the builder fails mid-build? If a modular builder goes into administration with your modules half finished in its factory, getting them out can be slow and contested. Our guide on what happens when a builder goes into administration mid-build covers the general position.
- Who owns the modules as you pay? Some contracts pass ownership of each module to you as it is paid for and require it to be marked or tagged as yours. Others keep ownership with the builder until delivery.
- Is your deposit protected? A large factory deposit is unsecured money in the builder's hands until something lands on your site.
- Does the warranty cover a factory build? State home building insurance schemes were written around work done on site, so check with the builder's insurer that a factory-built home is covered before you sign. Our posts on Victorian development rules and South Australian building indemnity insurance cover how those schemes work on a standard build.
What should the build contract say about who owns the modules?
The build contract should say when title to each module passes to you, how modules are identified in the factory, and what happens to them and your payments if the builder cannot finish. Those are questions for your solicitor, and they matter to the lender too: a contract that leaves ownership vague is one reason a lender limits or declines the off-site advance.
How are modular, prefab and transportable homes valued?
Modular and prefab homes that are fixed to permanent footings, connected to services and approved as a dwelling are valued like any other house, on comparable sales of the finished property. The lender orders a valuation on the land plus the home as it will be when complete, and lends against that figure and the cost to build, whichever is lower.
A transportable home is a different question. A transportable home may not count as real property if it sits on skids or removable supports, can be lifted off and driven away, or is not approved as a permanent dwelling. Many lenders then treat it more like a vehicle or a piece of equipment than a house, or decline it, because the security can leave the title. Fixing it down permanently, connecting it and getting it certified as a dwelling usually changes that answer.
Resale evidence is the second issue. In some regional postcodes there are few sales of modular homes to compare against, and a valuer may lean on site-built comparables or apply caution. Results vary by valuer and by lender. If the valuation lands below the contract price, the gap has to be covered from your funds or other security, and the self-employed construction guide explains how lenders handle a valuation shortfall.
What are governments doing about modular housing finance?
Governments are starting to work on the factory-stage finance gap, with Tasmania the furthest along on a dedicated scheme. In June 2026 the Tasmanian Government announced a modular finance guarantee: a government guarantee on construction loans for modular homes while they are built off site, reducing as construction progresses and ending once the home is installed, offered through approved lenders and approved builders. It is a guarantee that shrinks as the build progresses, aimed at the exact weeks when a lender holds only the land.
The Government released a draft Modular Housing Finance Guarantee Bill 2026 for consultation on 19 August 2026, with enactment planned for the last quarter of 2026. Eligibility, guarantee limits and the scheme documents are still being settled, so treat it as proposed, not available, until the Tasmanian Government confirms it has started. The scheme is pitched at first home buyers and other Tasmanians; for self-employed owners and small developers, the point is what it signals about how lenders may treat factory stages if it works.
New South Wales passed the Building (Approvals and Practitioners) Act 2026 in August 2026, which defines prefabricated buildings and sets rules for their manufacture, supply, transport, delivery and installation; commencement is not yet confirmed. Nationally, the Australian Building Codes Board opened consultation in July 2026 on a proposed voluntary certification scheme for manufacturers of prefabricated construction. Certification matters to lenders: a manufacturer certified to a national standard is easier to assess than one each lender has to vet on its own.
How do self-employed owners and small developers use modular builds?
Self-employed owners and small developers use modular builds where speed on site, a fixed price or a remote location outweighs the harder finance during the factory stages. The finance route depends on what the build is for.
- A home on land you already own. A strong land position does the most work here, because it supports the off-site advance. Once the home is finished, a One Doc home loan or another low doc product can take out the construction loan where your financials lag your income.
- A granny flat or second dwelling. Smaller modular units often arrive close to finished, so the factory exposure is short. Council approval and connection to the main home's services are the usual hold-ups.
- Holiday or rental cabins. Cabins on a business site are business-purpose lending; our post on holiday park expansion finance covers how lenders look at them.
- A duplex or small project. Two or more modular dwellings built to sell or hold move toward small-scale development finance, with a project test rather than a home loan test.
Whichever route applies, the builder, the contract and the land carry the application. Our construction finance guide covers the wider options, and the Construction Hub collects our build and project finance posts in one place.
A modular home flips the usual construction loan. Most of the home is built before it reaches your land, so the lender's money would leave before its security improves. Lenders that fund modular builds answer that by paying only part of the contract during the factory stages, capped by your land equity and limited to builders they trust, then releasing the balance once the home is fixed, connected and inspected. Until then the land is the lender's only security and your deposit sits with the builder, so the contract's ownership and insolvency terms matter as much as the loan. Transportable homes may not count as real property at all, and government support such as Tasmania's proposed guarantee is not yet something to plan around.
Key takeaway: settle the builder, the contract's payment and ownership terms, and your land position before you choose the lender, because those decide what any lender will pay before installation.Frequently Asked Questions
The cost to build a modular home in Australia depends on the factory contract, the site works and the costs that sit outside the contract, so no single figure holds across builders or postcodes. The contract usually covers the modules, transport and installation, while footings, crane hire, service connections, approvals and landscaping can be separate line items. Lenders look at the total cost to complete, not just the factory price, and our self-employed construction loan guide covers how they treat costs outside the building contract.
You can get a construction loan for a modular home, but most lenders treat it differently from a site-built home because most of the home is built before it reaches your land. Expect part of the contract to be paid during the factory build, with the share set by each lender, and the balance released once the home is fixed, connected and inspected. Some lenders pay nothing until installation, so the builder's payment schedule and your own cash fill the gap; see how standard construction finance works for comparison.
Modular construction loans are offered by a small group of lenders: one major bank with a dedicated prefab product, some other banks case by case, and a number of non-bank lenders and specialist funders. Each sets its own list of accepted manufacturers and its own limit on what it pays before installation. A broker can match the builder and contract to a lender that already accepts them; see non-bank lender for how that side of the market differs.
Banks lend on transportable homes only in some cases, because a transportable home may not count as real property if it can be lifted off the land and moved. Where the home sits on permanent footings, is connected to services and is approved as a dwelling, most lenders value it like any other house. Where it stays removable, many lenders decline it or treat it more like equipment than a house, and the valuation carries less weight.
A government guarantee for modular home loans has been proposed in Tasmania, where a draft Bill was released for consultation in August 2026 with enactment planned for the last quarter of 2026. It would cover part of a construction loan while the home is built off site, reducing as construction progresses and ending once the home is installed. Until a scheme like that is running, most modular builds are funded on ordinary lender policy, and our construction finance guide covers the standard options.
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