What Does a Commercial Office Fitout Cost?

What that mid-range can cover

A mid-range commercial fitout may include a coordinated workplace layout, partitions and glazing, ceilings and floor finishes, joinery, meeting and breakout spaces, and associated lighting, power, data and building-services modifications. The exact scope must be defined: a square-metre rate is only useful when its assumptions are visible.

For higher-end projects, the selection and specification of premium AV, enhanced acoustic treatments, bespoke joinery, specialist finishes, feature lighting and significant services upgrades all play a part in the overall cost.

Melbourne and Brisbane office fitout costs

The same cost-planning discipline applies in both cities, but the final office fitout cost in Melbourne or Brisbane depends on the building, access, market pricing, programme and project requirements. O'Neill's has dedicated operations in Victoria and Queensland, so the early plan can be tested against the location rather than relying on a generic national rate.

See our Melbourne commercial fitout capability and Brisbane commercial fitout capability.

Plan the workplace before fixing the budget

O'Neill's can combine workplace strategy, space plans and cost plans so the budget responds to how the organisation needs to work. This helps test headcount, work settings, meeting capacity, circulation and amenity before detailed design multiplies the number of decisions.

The first office fitout cost driver is scope clarity

A budget becomes more reliable when the scope becomes more specific. The difference between ‘new meeting rooms’ and a coordinated requirement for partitions, acoustic treatment, glazing, doors, lighting, mechanical modifications, power, data, AV, furniture interfaces and finishes is significant.

Early budgets should therefore make inclusions, exclusions and assumptions visible. Hiding uncertainty behind one rate makes the number look precise without making it useful.

Services can move the budget faster than finishes

Mechanical, electrical, fire, hydraulic, security and technology changes are often less visible than furniture or joinery, but they can materially change the cost of a fitout. Capacity, existing distribution, control systems and base-building interfaces need to be understood early.

Fire, electrical, mechanical and hydraulic services are governed by compliance and performance requirements. Once those obligations are established, there may be less opportunity to reduce their cost through value management.

A visually simple layout can still be services-intensive if it creates new rooms, changes occupancy, relocates amenities or requires major technology and power upgrades.

Existing conditions matter

Refurbishment and fitout work inside existing buildings carries a different risk profile to a clean new shell. Hidden services, existing penetrations, floor conditions, ceiling congestion, retained finishes and incomplete as-built information can all affect cost.

Site investigation and early services review do not eliminate every unknown, but they reduce the amount of uncertainty carried into tender and construction.

Programme has a cost

Compressed programmes can require early procurement, additional supervision, out-of-hours work, staged handovers or parallel trade activity. Occupied buildings may also require noisy or disruptive work to occur outside normal hours.

The right question is not whether speed costs more in every case. It is whether the required completion date changes the delivery strategy — because that strategy needs to be priced honestly.

Joinery, finishes and detail define the visible investment

Bespoke joinery, natural materials, specialist finishes, curved elements, high-end AV, acoustic treatments, feature lighting and custom furniture interfaces create the character and performance of a workplace, but they also increase coordination and fabrication effort.

Furniture, AV, joinery and finish selections can vary significantly. Targeted value management can align these selections with the desired budget while protecting the overall design intent, workplace performance and finished result.

Contract type affects cost and programme

A construct-only, Design & Construct or ECI-to-D&C model allocates design responsibility, coordination and risk differently. The selected approach can therefore affect both the project budget and the programme.

Early contractor involvement (ECI) brings the head contractor into design, cost planning, procurement and buildability reviews before construction begins. On suitable projects, continuing from ECI into D&C can reduce avoidable redesign and procurement delay, help maintain the budget and shorten the overall project lifecycle by months. Actual outcomes depend on approvals, design maturity, client decisions, building constraints and long-lead items.

A good budget separates price from uncertainty

Cost planning should show where the design is resolved, where assumptions remain and where further investigation or decisions could move the number. That gives the client something they can manage.

The objective is not to create the lowest early estimate. It is to create a budget that becomes more reliable as information improves and that supports real commercial decisions before construction starts.