01
Start with scope, not a headline rate
Benchmark rates can help with an early sense-check, but they rarely compare like with like.
Existing condition
Record what remains, what is removed and what can be reused. A fitted tenancy, a stripped shell and an occupied refurbishment carry different demolition, protection, services and compliance work.
Operational requirements
Translate the business into areas, customer flow, staff needs, storage, equipment, lighting, acoustics, security and cleaning requirements. These decisions shape both construction and specialist packages.
Quality and finish
Define the expected durability and presentation level for floors, walls, ceilings, joinery, fittings and signage. Without a clear finish schedule, quotations may price different outcomes.
What the rate includes
Ask whether any benchmark includes design fees, consultants, consent fees, services, furniture, IT, equipment, signage, landlord works, after-hours work, contingency and tax. Record exclusions rather than assuming them.
02
Allow for the site and approvals
Building services
Electrical capacity, data, lighting, HVAC, plumbing, drainage, fire systems and kitchen equipment interfaces can be major cost drivers. Verify existing capacity and connection points before design is fixed.
Consent and compliance
Some existing non-residential interior alterations may be exempt, but work affecting structure, specified systems, fire separations or sanitary plumbing falls outside that exemption. A first fit-out of a new shell is also outside it.
Official source: MBIE: interior alterations to existing non-residential buildingsLandlord and centre rules
Include landlord review, inductions, temporary protection, delivery routes, loading limits, shutdown approvals and required after-hours work. These constraints can affect preliminaries and productivity.
Unknown conditions
Use surveys, service investigations and targeted opening-up where appropriate. For refurbishment work, asbestos duties must be addressed before material that may contain asbestos is disturbed.
Official source: WorkSafe: managing asbestos in your building or workplace03
Build a comparable project budget
Use one scope schedule
Issue the same coordinated information to each pricing party. Separate fixed items, provisional sums, client-supplied items and exclusions so differences are visible.
Keep contingency explicit
Set contingency according to design completeness and site uncertainty. Hold it as a managed project allowance, not as an invisible amount spread through unrelated trades.
Track decisions and changes
Record each change, its cost, programme effect and approval before work proceeds where practicable. A decision register protects the working budget from gradual scope drift.
Protect the opening date
Budget decisions should be tested against procurement and approvals. A cheaper late substitution can cost more if it delays manufacture, inspection or opening.
FAQ
Common questions
How much does a commercial fit-out cost per square metre in New Zealand?
There is no responsible universal rate. Existing condition, use, services, approvals, programme, equipment, joinery and finish level all change the scope. Use benchmark rates only as an early range, then price a site-specific brief and coordinated drawings.
Should a fit-out budget include contingency?
Yes. The amount should reflect how complete the design is and how much is known about the existing building. Keep contingency visible, controlled and linked to identified risk.
What information improves cost certainty?
A measured plan, defined use, coordinated layout, finishes, equipment, signage, services, consent assumptions, access rules, programme and a clear list of inclusions and exclusions.
Sources
Check the current requirements for the site.
This guide is practical project information, not legal, planning or compliance advice. Official requirements can change and the correct pathway depends on the building, use and proposed work.