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Kilsyth, Melbourne, VIC

Prebuilt

  • Good for: Large 3 to 4 bed family homes in VIC, NSW and SA
  • Good for: A builder with more than 20 years in volumetric modular

Prebuilt is a Melbourne modular builder, founded in 2003 by Rob and Christiana Colquhoun, that builds volumetric homes and commercial buildings in factories at Kilsyth and in New South Wales. Its homes sit on a steel base frame with no concrete slab and are craned onto engineered footings or screw piles. The pre-designed collection, drawn with architects Pleysier Perkins, has four single-level designs from 119 m2 and prices from $627,000, and it also takes on custom and double-storey homes. Its site lists a Victorian domestic builder unlimited registration and NSW contractor licences, with a service area of Victoria, New South Wales and South Australia.

Visit PrebuiltSee their 4 homesThe straight answerCheck your block and place a home on it

Track record

InstallInstalls its own homes
BusinessPrebuilt Pty Ltd, ABN 76 103 794 743
TradingABN registered 24 May 2004; the maker says Since 2003, Prebuilt has pioneered the Australian modular building industry.

What they publish

What they say about approvalNot published
Structural warrantyPrebuilt uses a Home Industry Australia (HIA) contract, which is an industry-standard document. All homes come with a six-year Home Owners Warranty. source
FrameNo. All Prebuilt homes are constructed with a steel base frame, so there is no need for concrete. source
CladdingBreeze features corrugated Colorbond steel and Weathertex external cladding. source
Delivery and installPrebuilt has built offsite and installed hundreds of residential and commercial projects, with budgets ranging from $500,000 to $30,000,000. source
Where they deliverService Area: Victoria • New South Wales • South Australia source
Display home or yard*Note – Display visits are by appointment only. source

The straight answer

Researched 15 Oct 2026 from Prebuilt's own site and the public registers.

Who they are

Prebuilt is a Melbourne modular builder founded in 2003 by Rob and Christiana Colquhoun, with a factory at Kilsyth and a second in New South Wales. It builds homes and commercial buildings and is licensed in Victoria, NSW, South Australia and Tasmania. It does not list Queensland.

What they make

Volumetric modular homes on a steel base frame, craned onto footings or screw piles. The pre-designed range is four single-level 3 to 4 bedroom homes, Breeze, Mod, Habitat and Eve, from 119 m², plus custom and double-storey homes.

What the price covers

Pre-designed homes run from $627,000 to $703,000. Transport within 100 km of Kilsyth is included for an easy site; the crane at about $12,000 to $25,000, heating and cooling, and site works are extra.

Installing one in Queensland

Prebuilt does not build in Queensland: it holds no QBCC licence and lists Victoria, NSW and South Australia as its service area. A Queensland home would need a QBCC-licensed builder to contract the work and provide home warranty cover.

Who it suits

Buyers of a full-size family home in Victoria, NSW or South Australia.

Worth checking

Not available for SE Queensland blocks, and there is no granny flat-sized home in the range.

LicenceVBA/BPC Vic, NSW Fair Trading, SA CBS VIC CDB-U 48129; NSW 179319C; SA 274992 Domestic Builder Unlimited (VIC); contractor licence (NSW); building work licence (SA) (as published, not confirmed on the register)
BusinessPrebuilt Pty Ltd, ABN 76 103 794 743, active, registered 24 May 2004
Tradingsince 2003, per its story page; ABN since May 2004
Builds atKilsyth, Melbourne, VIC, plus a second factory in NSW
Delivers or installsVictoria, New South Wales and South Australia (site footer); FAQ adds Tasmania
WarrantyPrebuilt uses a Home Industry Australia (HIA) contract, which is an industry-standard document. All homes come with a six-year Home Owners Warranty.
Sources, checked 15 Oct 2026
  1. Maker building licences
  2. Maker residential FAQs
  3. Maker pre-designed homes
  4. Maker story
  5. ABN Lookup
  6. QBCC licensed contractors register (open data)

Their homes

about 38.8 x 3.4 mdrawn to scale, 1 m gridPlanModular home

Breeze

Prebuilt · Kilsyth 132 m² · 4 bed From $712,000 installedHome $627,000 ask what's includedMaker installs it
about 35.9 x 3.4 mdrawn to scale, 1 m gridPlanModular home

Eve

Prebuilt · Kilsyth 122 m² · 4 bed From $737,000 installedHome $655,500 ask what's includedMaker installs it
about 35 x 3.4 mdrawn to scale, 1 m gridPlanModular home

Habitat

Prebuilt · Kilsyth 119 m² · 4 bed From $754,000 installedHome $672,000 ask what's includedMaker installs it
about 45 x 3.4 mdrawn to scale, 1 m gridPlanModular home

Mod

Prebuilt · Kilsyth 153 m² · 4 bed From $791,000 installedHome $703,000 ask what's includedMaker installs it

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