The terms modular home and prefab home are often used interchangeably, but they’re not quite the same. If you’re planning to build a compact, efficient home on your property, understanding the difference could help you choose the right type for your site and budget.
What Is a Prefab Home?
Prefab, short for prefabricated, refers to any home that’s built off-site in a controlled environment before being transported to its final location.
Prefab homes include:
- Modular homes
- Flat-pack kit homes
- Panelised builds (walls and roof systems delivered separately)
Prefab is more of a construction method than a specific type of home.
What Is a Modular Home?
Modular homes are a type of prefabricated home, but with a key distinction: they’re built in larger, pre-finished sections (modules) that are transported to the site and assembled in place.
These modules are typically:
- Pre-plumbed and pre-wired
- Built to meet Building Code of Australia standards
- Installed on a slab or stumps with minimal on-site construction
Because much of the construction occurs off-site, modular homes can often be delivered faster and with greater consistency than traditional builds. For this reason, many granny flats on the Gold Coast are now delivered using modular construction methods, allowing builders to create fully compliant homes with shorter build timelines and more predictable outcomes.
Key Differences
Here’s how they compare:
1. Construction Process
- Prefab: Can include modular, flat-pack or panel-based systems. The level of completion off-site varies.
- Modular: Fully built modules – 90%+ complete before delivery.
2. Site Planning
- Prefab: Varies depending on how much is completed in the factory.
- Modular: Fastest install time – modules are joined and connected within days.
3. Design Flexibility
- Prefab: More flexibility in layout and materials if using panelised or custom systems.
- Modular: Less flexible but highly efficient with predictable costs and timelines.
4. Cost Predictability
- Prefab: Greater variation depending on site work required.
- Modular: More fixed-cost options due to factory-controlled process.
5. Transport and Setup
- Prefab: May require more on-site construction.
- Modular: Delivered in sections and installed quickly, often with minimal disruption.
What’s Better for My Project?
It depends on your objective. If you want speed – modular is often the answer. If you want flexibility of design then custom prefab may be best. Both options are ideal for:
- Secondary dwellings
- Granny flats
- Backyard homes or guest units
Prefab options like panelised kits or flat-packs may suit those wanting more hands-on involvement or design flexibility – but they require more planning, trades, and approvals.
How DuaLiving Works with Modular and Prefab Homes
At DuaLiving, we specialise in custom prefab builds that are compliant, fully engineered, and delivered ready for final connections. We are the perfect option for people searching for:
For prefab options, we offer:
- Clear breakdowns of site works and costs
- Support through approvals and logistics
- Flexibility for a range of property sizes and zones
Our approach is to make the decision clear and the process simple.
