Technology · Modules finished off-site

Prefab

A building assembled indoors is a building assembled without weather, without a trade waiting on another trade, and without the neighbours living beside a construction site for two months. Prefabrication moves as much of the work as possible to where it is fastest and most controlled.

Prefab
At a glance
On site
Typically 1–2 weeks
Lift day
Usually one
Foundation
Engineered slab, poured before delivery
Inspections
In factory and on site

Modules are built to the same specification as every other DollarBuild dwelling: the kit’s finishing products on an Australian-standard frame, inspected as they are built rather than after they are closed up.

The site work happens in parallel — slab, services and connections are ready before the modules arrive — so the crane day is the day the building appears.

Prefab is a delivery method, not a different product. The Studio 30 arrives as one module; the Three-Bedroom 60 as one or two, and the Three-Bedroom 80 as two, depending on transport and crane reach.

How it works
  1. 01
    Feasibility
    Street width, overhead lines, crane setup position and the lift path over the house are checked first. If the lift does not work, prefab is not offered for that site.
  2. 02
    Slab and services
    The engineered slab is poured and the sewer, water and electrical connections brought to the module positions while the modules are being built.
  3. 03
    Factory build
    Frame, cladding, roofing, wet areas, joinery, electrical and paint are completed indoors with stage inspections.
  4. 04
    Transport and lift
    Modules travel by truck under permit and are craned onto the slab, usually in a single day.
  5. 05
    Connect and hand over
    Services connected, joins sealed, final inspection and occupancy certificate.
Best for
  • Sites with clear crane access from the street
  • Owners for whom time on site — noise, disruption, a tenanted main house — is the cost that matters most
  • Repeat builders who want the same dwelling reproduced identically
Trade-offs, stated plainly
  • Crane access rules some sites out — rear lots, narrow streets, overhead power lines
  • Module dimensions are fixed by transport limits, which is why the plans are what they are

Which method suits your site?

That is a feasibility question, not a preference. Send the address and we will answer it in writing.

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