The Steel Site Office

From $27,500 (inc GST)

A heavy-duty transportable office built from a standard steel shipping container frame, designed for demanding environments and long-term use. Available in 20ft and 40ft configurations, the Steel Site Office offers an exceptionally durable workspace solution — equally at home on a construction site, rural property, or commercial premises as it is in a backyard or home-based business setting.

Approximate external dimensions: L: 6000mm × W: 2300mm × H: 2450mm

Key Features
  • 20ft and 40ft configurations available — from $22,000 for a standard 20ft with windows and doors

  • Full steel-frame construction — built on a standard shipping container base for maximum strength and durability

  • Turn-key solution — built off-site and delivered ready to connect

  • Fully customisable — window positions, door styles, flooring, colours and internal layout

  • Durable SPC hybrid flooring installed before delivery

  • Built to Australian standards — AS/NZS 3000 electrical, wiring and power points installed throughout

  • 3mm steel roof construction for long-lasting weather protection

  • Ideal as a heavy-duty site office, construction site facility, rural or farm office, storage and workspace combination, or permanent commercial premises

Windows and Doors

  • Aluminium double-glazed windows with fly screens for improved insulation, noise reduction, and year-round comfort.
  • Large windows positioned for natural light and airflow, helping create bright, open living spaces inside your tiny home.
  • Sliding glass and aluminium entry doors designed for durability, easy access, and a modern finish.
  • Privacy glass bathroom door providing natural light while maintaining privacy.
  • Strong galvanised steel wall and roof framing with protective coating, combined with 75mm insulation to support energy efficiency and comfort in all climates.
  • Custom window, glass and door options available – our team can tailor styles, sizes, and layouts to suit your design preferences.

Workspace & Layout

  • Open-plan interior layout as standard, providing maximum flexibility to configure the space as a single office, divided workspace, or multi-purpose room.
  • Internal partitions can be added to suit separate workstations, a meeting area, or a combined workspace and amenities space.
  • Available in 20ft and 40ft configurations to suit different space requirements and property sizes.
  • External cladding available for $1,800 (20ft) or $3,600 (40ft), adding insulation and a more refined exterior finish suited to permanent or semi-permanent installations.
  • Suitable for a wide range of applications including site offices, home studios, workshops, trade storage, farm management rooms, and more.
  • Speak with our team to discuss your layout requirements and explore the configuration options available.

Plumbing

  • Plumbing can be installed to your personal requirements, whether you need a basic sink and hand-washing station, a toilet facility, or a more complete amenities setup.
  • Water and waste connection points positioned for straightforward installationby local licensed trades.
  • Speak with our team about your plumbing requirements — we can tailor the internal layout to suit how you plan to use the space.
  • Final connection of services to the building is by others — your local licensed plumber will connect to your site’s supply and waste.

Durable Flooring System

  • High-strength magnesium concrete composite subfloor, a lightweight but extremely durable material that is water-resistant, fire-resistant, and naturally resistant to insects and pests.
  • Thick timber-look SPC hybrid flooring, combining the appearance of natural timber with the durability of modern composite materials.
  • Scratch-resistant and moisture-resistant flooring, designed to handle everyday wear while maintaining its appearance over time.
  • Comfortable and practical for modern living, with a surface that is easy to clean and maintain.
  • Floors fully installed before delivery, ensuring your tiny home arrives ready for immediate setup.
  • Flooring colours and finishes can be customised, allowing you to tailor the interior style of your tiny home.

Power & Lighting

  • Fully wired electrical system installed to Australian standards, ensuring safety, reliability and compliance.
  • Electrical installation completed to AS/NZS 3000 (Australian Wiring Rules), the national standard for residential electrical systems.
  • Lighting, switches and power points installed throughout the home, providing convenient access to electricity for everyday appliances and devices.
  • Electrical Distribution Board (EDB) professionally installed, allowing safe and efficient management of power across the tiny home.
  • Pre-wired provision for air-conditioning, allowing your local licensed tradesperson to easily install a unit suited to your climate.
  • Compatible with solar and battery systems, allowing the home to be configured for solar power or off-grid living if desired.
  • Custom electrical layouts available, giving you the flexibility to adjust lighting placement, power points and electrical features to suit your needs.

Structure & Roof

  • Full steel frame construction built on a standard shipping container base, providing exceptional structural strength and durability.
  • 3mm steel main roof designed to withstand demanding weather conditions and heavy-use environments.
  • Galvanised and painted protective steel cover sheet on roof sections for long-term weather protection.
  • Steel-framed walls for maximum rigidity and security — well suited to sites where structural robustness is a priority.
  • Built to last in a wide range of Australian conditions, from coastal and rural environments to active construction sites.

Update Council & Approvals

  • Approval requirements for portable buildings and site offices can vary depending on your state, local council, and how the structure will be used and classified.
  • In some areas, a Development Application (DA) or complying development certificate may be required, particularly for permanent or semi-permanent installations used as a place of work.
  • Temporary or relocatable structures may be treated differently to permanent buildings under local planning regulations — checking with your council early is strongly recommended.
  • Our team can help point you in the right direction and provide guidance based on common approval pathways for commercial and non-residential structures across Australia.
  • For more detailed information about approvals, planning considerations and council regulations, please visit our Council Information page.

Customisation

Every Site Office can be tailored to suit your property, operation and practical requirements. From layout and internal configuration through to finishes and add-ons, these units are designed for flexibility.

Customisation options may include:

  • Choice of interior flooring colours and finishes.
  • External cladding options to suit different property styles and environments.
  • Window and door positions adjusted to suit your site orientation and workflow.
  • PVC or aluminium window frame styles available.
    Internal partitioning to divide the space into separate rooms or workstations.
  • Plumbing additions including sinks, toilets or amenities fitouts.
  • Optional upgrades and add-ons available, quoted individually depending on your requirements.

Because every site and use case is different, speak with our team to explore what works best for your space and budget.

How It Works - 5 Simple Steps

01

Choose Your Tiny Home

Browse our range of tiny homes and granny flats to find a design that suits your needs. Our team can help you explore layouts, sizes and customisation options.
02

Customise Your Design

Select your preferred finishes, layout options, glass upgrades and other features. We’ll help you configure a tiny home that suits your property and how you plan to use it.
03

Place Your Order

Once your design is finalised, we confirm your order and production begins. Our team will provide updates throughout the build process.
04

Delivery to Your Site

Your tiny home is transported to your property using specialised transport such as tilt-tray or crane trucks, depending on site access
05

Installation & Connection

The home is placed on your prepared site and connected to services by licensed local trades. Once installed, your tiny home is ready to use.
Have questions about our process?
Our team can guide you through each stage — from choosing the right model to delivery and installation. Chat to us today.

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02 7232 0245
Visit Our Central Coast Showroom
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4/2 Apollo Close,
West Gosford NSW 2250

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      Request a Quote

      To request a free quote please call us on 02 7232 0245 or fill the form below.