Portable Buildings NZ — Site Offices, Lunchrooms, Demountables & Work Spaces
Need built space fast for a worksite, business or organisation — a portable office, a site office, a lunchroom, a studio or a sleepout — without a slow, expensive on-site build? A portable building arrives finished and insulated, ready to use, and can be relocated when the job moves. At Portable Dwellings we supply them, made for New Zealand conditions, with clear pricing incl. GST, custom fit-outs and NZ-wide delivery — so you know the cost before you commit, and we itemise every line.
👉 Send your preferred size and site location for a fixed quote
Built for business and worksites
Our portable buildings are demountable and relocatable — delivered where you need them, and moved on when the job moves. Common uses:
- Portable offices and construction site offices — desks, power, data and lighting
- Lunchrooms, smoko and staff rooms
- Ablution and toilet blocks, changing rooms (priced to spec)
- First-aid rooms, security huts and sales suites
- Classrooms, clinics and farm offices
- Sleepouts and staff accommodation with bathroom and kitchenette
They’re lockable and secure, hard-wearing for site conditions, with GST shown clearly for business buyers.
Portable offices — 20ft, 30ft & 40ft (guide prices, incl. GST)
Final totals depend on your fit-out and upgrades; these are guide prices incl. GST.
20ft Portable Office / Building — from $38,500 incl. GST
A compact site office or single-desk workspace; the footprint suits tight access on busy sites.
30ft Portable Office / Building — from $51,000 incl. GST
Room for a multi-desk office, a staff room, or a combined office and lunchroom, with customisable interiors.
40ft Portable Office / Building — from $64,000 incl. GST
Generous space for a larger office, a training room, or an office-plus-amenities layout — without a long on-site build.
Popular upgrades (incl. GST): gable roof ($3,950 / $6,000 / $6,500), a 2 m front terrace and deck ($4,000), and off-grid solar for remote sites ($12,499 / $14,999 / $19,499).
What’s included (typical fit-out)
- Insulation for NZ conditions and double-glazed windows
- LED lighting, plenty of sockets, and electrical installed to NZ standards (with SDoC documentation provided where applicable)
- Kitchenette and bathroom options
- Storage, durable flooring and easy-clean surfaces
Every site is different, so we tailor your spec and show the cost impact line by line.
Demountable & transportable — relocate between sites
Because each unit is a self-contained, demountable building, you can transport it to the next project or site when your needs change. That makes it a practical alternative to a fixed build for commercial, industrial, rural and education users who need space now and flexibility later.
Why businesses choose Portable Dwellings
- Clear pricing incl. GST — we itemise every line
- Customisable interiors, colours and fit-outs
- Built for NZ conditions with durable finishes
- 10-year after-sales support — spare parts supplied at manufacturer price
- Relocatable between sites
- Simple terms: typically a 40% deposit, balance on delivery
How it works — a simple 3-step plan
- Choose your size — 20ft, 30ft or 40ft.
- Customise — layout, finishes, terrace, solar.
- Delivery — 40% deposit, balance on delivery; we coordinate transport and site handover.
Delivery
We coordinate transport and access checks, and hand over on site. You arrange your own contractor for piles or pads and service connections, so delivery day runs to plan. If you need more floor area later, you can add a second unit.
Do you need consent?
Council requirements vary by site and by council. Check with your local council on what’s needed for your site and send us their requirements — we’ll tell you what we can and can’t do before you commit to anything.
Compare your options
Prefer a steel-container look? See our container buildings. Want a compact footprint that unfolds on site? Explore expandable buildings. After a cost snapshot? Review our portable home price list and tiny home prices. For small sleepouts, our cabins are a good-value option.
Get a price
Send your preferred size and site location for a fixed, itemised quote, and we’ll show you exactly how each option affects your budget. Viewings are available by appointment.
More Space. Less Waiting.
👉 Send your preferred size and site location for a fixed quote
