Shipping Container Offices and Site Offices in NZ
A container office arrives fitted out, sits on simple supports and can be lifted onto a truck when the job moves. Builders, farms, vineyards and event crews use them as site offices and lunch rooms. Here is what they cost, what goes into the fit-out and what councils expect.
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Where they are used
Who uses container offices
Building sites
Site office and lunch room
On a larger build the site office holds plans, the sign-in register and first aid gear, and the lunch room gives the crew somewhere dry to eat. A 20ft fits a desk and plan table or a bench and seating for a small crew. Many builders pair it with a site storage container on the same pad.
Rural and recovery
Farms, vineyards and recovery work
Vineyards in Hawke’s Bay have used containers as on-site offices, and after Cyclone Gabrielle in 2023 containers were supplied as storage and site offices to marae and clubs helping with recovery. A container office suits sites with no existing building and no time for a consented one.
Long term
Permanent yard and business offices
Yards, depots and small businesses use a 20ft or 40ft as a permanent office. For daily use, plan proper insulation, a window that opens and a reliable power supply from the start, because adding them later costs more than building them in.
| Unit | Published price excl. GST | Incl. GST |
|---|---|---|
| 10ft site office | $4,590 | $5,279 |
| 20ft office | $5,500 to $5,865 | $6,325 to $6,745 |
| 20ft lunch room | $5,500 to $7,000 | $6,325 to $8,050 |
| 40ft office | $11,000 | $12,650 |
Fit-out
What goes into a container office fit-out
Insulation and lining
Bare steel is hot in summer and drips with condensation in winter. A NZ conversion guide put insulation at $2,000 to $5,000, GST not stated. Panels or spray foam with a lining are the usual choices, compared in our container insulation guide.
Power and lighting
Lights, sockets and a switchboard were put at $3,000 to $6,000 in the same guide. Electrical work must be done by a licensed electrician, who issues an Electrical Safety Certificate. WorkSafe sets out the rules for electrical work in NZ.
Windows and doors
A personnel door and at least one opening window make the space usable without the cargo doors open. Windows and doors were put at $1,500 to $4,000. Cut openings weaken the shell, so the supplier should frame them in steel. See container modifications.
Ventilation and colour
People breathing and working inside add moisture, so allow a vent or extractor fan as well as a window. A light exterior colour helps in summer: measured temperature data from five containers in the Brisbane container heat study found that darker containers ran hotter.
Hire or buy a site office
Hire suits a single project. NZ suppliers rarely publish office hire rates, so ask for a monthly rate with delivery and collection shown separately, and check the minimum term. For a site office needed for more than a year or two, compare the hire total with the purchase prices above and the resale value at the end. Our hire vs buy guide sets out the sums, and the container hire page covers hire terms.
Consent for a container office
Council guidance treats an office as an occupied use. The Invercargill City Council container guide lists offices among uses that need building consent, and Whangarei District Council says any use other than storage needs consent. In MBIE Determination 2025/018, the exemption for unoccupied buildings did not apply to container structures that people normally entered. For a temporary site office during a build, ask the council early whether it needs its own consent. Our container consent guide covers the details.
Placement
Placing and delivering a container office
Level and steps
Set it level with safe access
An office has to sit level so doors and windows close and the floor feels solid. Concrete pads or piers under the corner castings are common. Plan steps and a landing at the personnel door, because the floor sits well above ground once the container is on supports.
Delivery
Plan the lift before it arrives
A fitted office is heavier than an empty box and should not be dropped or dragged. HIAB and swinglift deliveries need firm, level ground and clear overhead space. Our container delivery guide lists what to check, and you can request site office quotes with photos of the spot.
Container types
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Get quotes for a container office
Tell us the size, the fit-out you need, hire or buy and where it is going. Suppliers who service your area quote you directly.
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Container office questions
One NZ supplier’s August 2026 clearance list showed a 10ft site office at $4,590 excl. GST, 20ft offices at $5,500 to $5,865 excl. GST and a 40ft office at $11,000 excl. GST. Prices depend on the fit-out, insulation and condition, and delivery is extra. A custom new build with full insulation and power costs more.
Usually yes for a permanent office. Councils treat an office as an occupied use, and once a container is fitted out, wired and used by people it is no longer a storage box. A temporary site office during a build may be handled differently, so ask your council before delivery. The electrical connection always needs a licensed electrician.
A 20ft fits one or two desks, or a small lunch room with a bench and seating. A 40ft can be split into an office at one end and a lunch room or meeting space at the other. Check delivery access first, because a 40ft needs much more room for the truck and placement.
Yes, some NZ suppliers hire out site offices and lunch rooms, but few publish rates online. Ask for the monthly rate, minimum term, delivery and collection costs and what fittings are included. For jobs longer than a year or two, compare the hire total with buying a used office and selling it afterwards.