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Buying guides
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Comparing off-site builders is harder than comparing traditional ones, because the boundary between "included" and "extra" sits in a different place with every company. One builder's turnkey price may cover transport, crane and connections within a set radius; another's may cover the module alone.
The practical consequence is that a quote cannot be evaluated on its headline number. What matters is the inclusions and exclusions list, the payment schedule, what happens if the site turns out to be more difficult than assumed, and who carries the risk for delays on either side of the factory gate.
Guides in this category set out what to ask, what a well-written contract addresses, and which differences between quotes are substantive rather than cosmetic.
Key considerations
- Compare inclusions and exclusions, not headline prices
- Ask what triggers a variation and who bears site-condition risk
- Check what "turnkey" covers in that specific contract
- Confirm the transport radius and what applies beyond it
Guides in this category
- Kit home costs 27 Oct 2026
- Price rises and variations in modular contracts 27 Oct 2026
- Interior finishes in modular homes 13 Oct 2026
- Kitchens in modular homes 13 Oct 2026
- Living in a modular home 13 Oct 2026
- Buying an imported prefab home from an overseas supplier 12 Oct 2026
- Border Force finds asbestos in an imported prefabricated building 12 Oct 2026
- Customs duty, GST and biosecurity on an imported prefab home 12 Oct 2026
- Importing a prefab home into Australia 12 Oct 2026
- How to build a granny flat, step by step 8 Oct 2026
- How to build a modular home, step by step 8 Oct 2026
- How to buy a transportable home, step by step 8 Oct 2026
- How to get a tiny home, step by step 8 Oct 2026
- Help to Buy and modular homes 2 Oct 2026
- Converting a garage versus building a second dwelling 19 Sep 2026
- Granny flat or house extension — which fits the project? 19 Sep 2026
- Dual occupancy rules and approvals in New South Wales 9 Sep 2026
- Dual occupancy or granny flat — which second dwelling can you build? 9 Sep 2026
- Handover on a factory-built home — the two inspections instead of one 9 Sep 2026
- Knockdown rebuild or modular — what changes when there's a house already there 9 Sep 2026
- prefabAUS releases a standard contract for prefabricated homes 5 Sep 2026
- Building over a sewer or easement — the approval nobody budgets for 4 Sep 2026
- The 5% Deposit Scheme and a factory-built home 4 Sep 2026
- Modular home rules and approvals in the Australian Capital Territory 4 Sep 2026
- Short-stay letting a granny flat or tiny home 4 Sep 2026
- Site classification — the soil test that sets your slab cost 4 Sep 2026
- Stamp duty on a modular, transportable or kit home 4 Sep 2026
- Can you subdivide a granny flat onto its own title? 4 Sep 2026
- Modular granny flats and the rise of multi-generational living 31 Aug 2026
- What to do about a building dispute, state by state 21 Aug 2026
- Insuring a modular or prefab build — where the standard cover stops 21 Aug 2026
- Does a modular, kit or transportable home qualify for the First Home Owner Grant? 9 Aug 2026
- Hidden cost checklist: questions to ask a modular builder before you sign 4 Aug 2026
- Which housing type fits your situation 3 Aug 2026
- Granny flat layouts and the rules that shape them 31 Jul 2026
- Floor plans and customisation in modular homes 31 Jul 2026
- Valuation and resale of modular homes 31 Jul 2026
- Warranties, defects and maintenance for modular homes 31 Jul 2026
- Checking a prefab builder's licence and insurance 31 Jul 2026
- Warranties, maintenance and later changes to a prefab home 31 Jul 2026
- Selling a property with a granny flat 31 Jul 2026
- Insuring a tiny home in Australia 31 Jul 2026
- Transportable home rules in New South Wales 31 Jul 2026
- Transportable home rules in Queensland 31 Jul 2026
- Transportable home rules in South Australia 31 Jul 2026
- Transportable home rules in Tasmania, the ACT and the Northern Territory 31 Jul 2026
- Transportable home rules in Victoria 31 Jul 2026
- Transportable home rules in Western Australia 31 Jul 2026
- Building insurance and warranty schemes by state 26 Jul 2026
- Container home or modular home — what's the real difference? 26 Jul 2026
- Frequently asked questions about prefab and modular housing in Australia 26 Jul 2026
- Granny flat or tiny home — which is right for you? 26 Jul 2026
- Buying a modular home versus buying an established house 26 Jul 2026
- Modular home or kit home — which suits your project? 26 Jul 2026
- NDIS Specialist Disability Accommodation (SDA) and modular construction 26 Jul 2026
- Owner-builder permits in Australia by state 26 Jul 2026
- What happens if your builder becomes insolvent 26 Jul 2026
- What is a kit home? 26 Jul 2026
- Glossary of prefab and modular housing terms 25 Jul 2026
- Kit homes and the owner-builder route 25 Jul 2026
- Imported prefab kits — what compliance requires 24 Jul 2026
- NDIS Specialist Disability Accommodation and prefab 24 Jul 2026
- Site works — the costs that are not in the base price 24 Jul 2026
- Cyclonic and high-wind regions 24 Jul 2026
- Choosing a prefab builder — what to check before signing 21 Jul 2026
- What "turnkey" actually includes 19 Jul 2026
- Home Warranty replaces domestic building insurance in Victoria 1 Jul 2026
- Victoria legislates progress payment limits that will depend on construction method 11 Sep 2025
- CommBank raises off-site lending limits for buyers using assessed prefab manufacturers 29 Jul 2025
Related categories
- Modular homes — Homes built as three-dimensional modules in a factory, transported and assembled on site as permanent dwellings.
- Prefabricated homes — Walls, floors and roof elements manufactured flat in a factory, then assembled on site.
- Granny flats — Self-contained secondary dwellings on the same lot as a principal home.
- Tiny homes — Compact dwellings, fixed or on wheels, typically 15–55 m².
- Transportable homes — Factory-built homes engineered so they can be relocated after installation.
- Materials & construction — What off-site homes are built from — steel, timber, panels, concrete — and how the method shapes the result.
- Costs & planning — Prices, site works, approvals and the pathways that apply in each state.
- Finance — How lenders treat off-site construction and how progress payments differ.
- Rural builds — Remote sites, access constraints and why off-site construction suits difficult blocks.
- Industry trends — Policy, funding, market size and how Australia compares internationally.
- Updates — Regulatory, policy and market changes affecting prefabricated and modular housing in Australia, and who they bear on.
- Tools — Interactive checklists and lookup tools for planning a modular, prefab or secondary dwelling build.
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