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Tools
Most of the difficulty in a modular or prefab project is not finding information. It is working out which parts of it apply to your block, your budget and your intentions. The tools in this section turn material published elsewhere on this site into something you can answer questions against.
None of these tools produces a quote, a valuation or a recommendation. They produce lists, comparisons and questions: the items a factory quote commonly leaves out, the differences between one dwelling category and another, the published planning parameters that apply in each state, and the point in a build where money leaves your account before a lender releases it. Everything is calculated in your own browser. Nothing is stored or sent anywhere.
Where a tool states a fact, that fact is sourced and footnoted on the page in the same way as any guide. Where a tool asks for a number, the number is yours to supply.
Key considerations
- A tool can only reflect what has been published. Where a state or territory has no citable published rule, the tools say so rather than inferring one from another jurisdiction.
- Nothing here is advice about a specific property. Local council requirements, overlays and covenants can override general state parameters.
- Cost material anywhere on this site is drawn largely from builder-published guidance rather than independent survey data.
- Answers you enter are not saved. Reloading the page clears everything, so print or copy your results before you leave.
Guides in this category
- Granny flat cost range finder by state and size 19 Sep 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 rules lookup by state and territory 2 Aug 2026
- Payment timeline tool: find the cash gap between builder payments and loan drawdowns 1 Aug 2026
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.
- Buying guides — Comparing builders, reading contracts, and what to check before signing.
- 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.
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