---
title: What Does a Commercial or Industrial Building Cost per m² in 2026?
description: "A per-square-metre figure is the first thing most business owners want, and the least reliable. A plain warehouse shell on a flat, prepared site and a warehouse with offices, a heavy-duty slab and fire-rated boundary walls can be the same…"
url: "https://steelspan.co.nz/advice/what-does-a-commercial-or-industrial-building-cost-per-m%c2%b2-in-2026/"
updated: "2026-11-09"
category: "Costs & Pricing"
---

# What Does a Commercial or Industrial Building Cost per m² in 2026?

A per-square-metre figure is the first thing most business owners want, and the least reliable. A plain warehouse shell on a flat, prepared site and a warehouse with offices, a heavy-duty slab and fire-rated boundary walls can be the same size and very different prices. Here’s what separates them, and how we get you from a ballpark to a firm number.

## Shell vs finished building

The **shell** is the frame, roof, walls and doors. A **finished building** adds the floor slab, site works, services, offices, amenities and fit-out. Always check which one a quoted rate covers. The shell is often the smaller part of the total.

## What moves the price per m²

**Site works.** Earthworks, retaining, stormwater, hardfill, carparks and service connections. A sloping or soft site can add more than the building itself.

**The floor slab.** Forklifts, racking and heavy machinery need a thicker, more heavily reinforced slab than a storage shed.

**Span and height.** Wider clear spans and taller walls need heavier frames. Overhead cranes or gantries add load and cost.

**Fire design.** Buildings close to a boundary may need fire-rated walls with limited openings, under the Building Code’s fire clauses. Getting the layout right early can save a lot here.

**Energy efficiency (H1).** Heated or cooled areas, such as offices and showrooms, have insulation and glazing requirements. Larger buildings follow H1/AS2, which applies to non-housing buildings with more than 300 m² of occupied space.

**Offices, amenities and fit-out.** Toilets, kitchens, offices and mezzanines cost far more per m² than open warehouse floor.

**Professional fees, consents and contributions.** Engineering, design, fire reports, geotechnical work, surveying, council fees and development contributions.

## Ballpark figures

Take these as a rough starting point only:

- **Constructed warehouse shell:** typically from about $750 per m² and up. That’s a very basic shell: the building itself and a concrete floor. It doesn’t include site works, stormwater, drainage, electrical, security, fencing, offices or fit-out.
- **Finished warehouse:** with services, offices and everything else in place, the total can often exceed $1,500 per m², and can reach $2,000 per m² or more.

That’s why it pays to look at the whole cost of the project, not just the building.

## From ballpark to firm price

We use a three-step approach so you aren’t committing to a number built on guesses:

1. **Budget estimate** after a site visit, with the assumptions spelled out.
2. **Detailed design** under a pre-construction services agreement, which removes the variables: earthworks, drainage, foundations, frame, linings and services.
3. **Firm quote** under a written construction contract, checked against the original estimate before it reaches you.

## Don’t forget tax

New commercial and industrial buildings can qualify for Investment Boost, an immediate 20% tax deduction. See our Investment Boost post and talk to your accountant.

## Talk to Steelspan

Send us your site address, rough floor area and how you’ll use the building, and we’ll come back with a realistic budget. Use our Easy Shed Quote or call 0800 787 726.