When it comes to leasing a commercial property, the rent figure is only part of the story. Most tenants and landlords will also deal with Operating Expenses (OPEX)—additional costs associated with running the building.
If you’re a commercial property owner in New Zealand, understanding how OPEX works can help you manage your asset more effectively, keep tenants happy, and avoid end-of-year surprises.
What Are Operating Expenses (OPEX)?
OPEX includes all the costs involved in maintaining and operating a commercial building. These charges are separate from rent and are clearly outlined in most commercial lease agreements.
Typical OPEX items include:
- Council rates
- Building insurance
- General repairs and maintenance
- Fire safety and compliance
- Deferred maintenance and capital planning
- Management and accounting fees
Depending on the size and nature of the property, these costs can make up a significant portion of the total occupancy cost.
Who Sets the Budget?
The landlord owns the building, but it’s the property manager who usually prepares the OPEX budget.
At Commercial Property Partners (CPP), we:
- Review lease agreements for OPEX provisions
- Develop annual budgets based on realistic forecasts
- Ensure transparency and accuracy
- Communicate clearly with both landlords and tenants
Budgets are typically calculated based on the net lettable area (NLA) of each tenancy. A per-square-metre rate is applied so that tenants pay a fair share relative to their space.
What Happens at Year-End?
Each year, a reconciliation process (commonly called a “wash-up”) compares what tenants paid in estimated OPEX with what was actually spent.
- If tenants overpay, they’re refunded the difference.
- If they underpay, they’re invoiced for the shortfall.
Unexpected costs—like rising insurance premiums or urgent repairs—can affect accuracy, so experience in budget setting really matters.
Why Legal Advice Matters
No two leases are exactly alike. It’s essential that both tenants and landlords understand the lease provisions that govern OPEX charges.
This is especially important for:
- Tenants unsure whether OPEX applies
- Buildings with multiple tenants sharing costs
- Mixed-use buildings (commercial + residential), where legal overlap can cause confusion
If you’re in doubt, get legal advice before signing or issuing a lease. It helps avoid disputes later.
Final Thought
A well-managed OPEX process ensures transparency, avoids disputes, and contributes to better landlord–tenant relationships. It’s one of the most important tools a property manager has to keep your asset performing.
Need help with your OPEX budget? Call or email David at david@commercialproperty.net.nz for an obligation-free chat.
Explore more: Visit www.commercialproperty.net.nz to learn more about Commercial Property Partners NZ
