Episode 1 Recap – Modular Home Challenge on King Island
How to build a house in the middle of Bass Strait and make the maths behave
If you’re going to test a bold claim, it helps to have someone on hand who actually checks the numbers.
That’s why EPIC Builds: The 90 Day Challenge is hosted by Adam Spencer — a man with a healthy suspicion of anything that sounds too good to be true.
Episode One opens with a deceptively simple challenge:
The team from modular builder TBS quietly set their sights on a tighter target — 70 days.
Adam did the maths — that’s 6,048,000 seconds!
On King Island, every one of them counts.
The setting: spectacular, isolated and unforgiving
King Island is beautiful in a rugged, wind-whipped kind of way. Famous for shipwrecks, golf courses and exceptional produce, it is not famous for fast construction.
Materials arrive by ship and sometimes plane. Labour is limited. Weather windows are unpredictable. Forget one critical component and the schedule doesn’t slip — it collapses.
A traditional build here can take 12 to 18 months.
Which is exactly why this challenge feels, at first glance, slightly unhinged.
The logic: remove chaos before it starts
The house itself is refreshingly practical: a 152-square-metre, four-bedroom home, purpose-built for worker accommodation. Four bedrooms, four ensuites, shared kitchen and living spaces. Efficient, durable, designed to be lived in.
The real difference lies in how it’s built.
Instead of months of on-site trades, TBS use panelised modular construction. Floors, walls and roofs are manufactured in a factory under controlled conditions, cut to millimetre precision, then shipped as a complete kit of parts.
In Adam’s terms, this is good maths: reduce variables early, and the equation becomes much easier to solve.
Factory certainty beats island uncertainty
Back on the mainland, the stopwatch starts.
Inside the TBS factory, the build runs more like a production line than a traditional building site. Walls are framed, insulated, wrapped, glazed and clad in hours — protected from rain, wind and delays.
Even the electrical system is resolved offsite. Using Nexans modular wiring, wall panels arrive pre-wired and pre-tested. Fewer errors. Less waste. Far fewer seconds lost fixing things later.
Once complete, everything is packed into containers — panels, fixtures, appliances, furniture, right down to knives, forks and bed linen. Miss one item and those millions of seconds start evaporating very quickly.
The containers are trucked to port, craned onto a ship and sent across Bass Strait.
Now the clock really matters.
When prefab meets reality
When the ship arrives on King Island, the build moves fast — because it has to.
Panels are lifted into place, one after another, transforming bare earth into a recognisable home in a matter of days. For Adam, it’s one of those moments where theory collides with reality — and reality wins.
Local King Island tradies work alongside the TBS team, learning the system as they go. The benefit isn’t just speed; it’s knowledge that stays on the island, ready for future projects.
Prefab here isn’t a shortcut. It’s a system.
Prefab is bigger than one house
While the King Island build anchors the episode, EPIC Builds widens the view to show how modular thinking is reshaping construction across Australia.
Projects featuring Bondor demonstrate how Insulated Sandwich Panels combine structure and insulation into a single, high-performance element — allowing buildings to go up quickly while delivering airtightness and predictable thermal performance.
Work by EVISSA Architects shows how prefabrication can support strong architectural ideas, not limit them — embedding performance early so comfort and efficiency become outcomes, not aspirations.
And through a striking civic project, Knotwood reveals how prefabricated aluminium battens deliver the warmth of timber without the maintenance — finished offsite, installed precisely, and built to last.
Together, these moments reinforce a central idea: prefab isn’t one solution. It’s an ecosystem.
The big question – Did they beat the clock (you’ll have to watch to find out)
Eventually, Adam returns to King Island for reveal day.
The house is finished. Furnished. Certified. Ready to live in.
The only question left is the one that matters most:
Did they beat the clock?
Adam knows the number.
The team knows the number.
And the number is… impressive.
But if you want the exact figure — and how many seconds it actually took — you’ll need to watch the episode.
You can catch EPIC Builds: The 90 Day Challenge on Channel 9.
From one island.
Across one wild stretch of ocean.
Delivered in under 6million seconds!
This is just the first EPIC build.
Featured
Connect with the Expert builders, Architects, Engineers,
and Manufacturers as seen in this Episode
Bondor® is Australia’s leader in complete thermal building solutions and lightweight architectural panels making it the go-to solution for some of Australia’s best modular builders.
Knotwood offers a versatile range of modular aluminium profiles, proudly designed and manufactured in Australia.
TBS built the epic King Island home featured in episode 1. They manufacture high volume quality prefabricated timber building systems for multi-story, commercial and residential construction.
EVISSA is a team of professional architects in Melbourne. They create Healthy, Comfortable & Robust buildings, using Evissa prefabricated Structural Insulated Panels, while reducing energy costs and construction times — adding lasting value to your property.
Nexans modular wiring replaces traditional electrical installation methods with a cost-effective pre-assembled, plug & play technology. Prefabricated wiring systems deliver economic, environmental, logistical, and functional benefits
Brought to you by…
Epic Builds is brought to you by prefabAUS, the peak body for Australia’s off-site construction industry. Head to the prefabAUS website to find expert builders, architects, engineers, and manufacturers to help you build smarter.