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Leasing explained · Updated August 2026

Typical office lease terms by building grade

Lease terms in Australia follow the building, not the tenant. A serviced office is a short all-inclusive licence with no make good and no bank guarantee; a premium CBD tower expects a long net lease with a substantial incentive, a large bank guarantee and a full make good obligation. Knowing the convention for the grade you are looking at tells you what is standard and what is worth negotiating.

Serviced / flex
Monthly to 12 months, all-inclusive, no make good.
C and B grade
3–5 years, gross or semi-gross, fixed annual reviews.
A grade
5–10 years, net, substantial incentive, fitout contribution.
Premium
Longest terms, largest incentives, full make good.
Security
Bank guarantee scales with grade and term.

Serviced and flexible offices

Legally these are usually licences rather than leases, which is why they are short and simple. Terms run from month to month out to twelve months, priced as one all-inclusive monthly fee covering space, outgoings, fitout, furniture, internet, reception and a meeting-room allowance.

There is no make good, no separate outgoings reconciliation, and normally a deposit of a month or two rather than a bank guarantee. You are paying a premium per square metre for the flexibility and for not having to fund a fitout.

C and B grade buildings

The mainstream of suburban and fringe office leasing. Terms of three to five years are standard, quoted gross or semi-gross so the tenant deals with one figure. Rent reviews are usually a fixed percentage each year, sometimes CPI. Incentives exist but are modest compared with the CBD, and are more often taken as rent free than as a fitout contribution.

Many of these tenancies come with an existing fitout, which is the single biggest cost saving available in this part of the market — and a reason to push for an "as at commencement" make good standard.

A grade buildings

Five to ten year terms, quoted net, with outgoings billed separately and reconciled annually. Incentives are substantial and usually structured at least partly as a fitout contribution. Expect a bank guarantee measured in months of gross rent, a market review at any option, and a make good obligation drafted to base building.

This is the part of the market where the gap between face rent and effective rent is widest, and where comparing proposals on effective rent rather than headline rent changes the answer most often.

Premium buildings

The longest commitments and the largest incentives, frequently with the landlord building the fitout to an agreed specification. Terms are negotiated in detail rather than taken from a standard form, and lease documentation, security and make good obligations are correspondingly heavier.

Reading this table properly

These are conventions, not market data. What is standard for a grade tells you where to start negotiating; it does not tell you what a specific building will accept this quarter. For actual rents with sample sizes and as-at dates, use the suburb benchmarks — and for what a particular building will do, ask.

Conventions we typically see across Australian office grades. Indicative only — individual buildings vary, and none of these are market averages.
GradeTypical termRent structureIncentiveMake good
Serviced / flexMonth to 12 monthsAll-inclusive monthly feeOccasional free weeksNone
C grade3–5 yearsGross or semi-grossModest, usually rent freeAs at commencement, often negotiable
B grade3–5 yearsGross, semi-gross or netModerateAs at commencement or agreed schedule
A grade5–10 yearsNetSubstantial, often part fitoutBase building
Premium7 years and aboveNetLargest, often landlord-built fitoutBase building
Good to know

Common questions

How long is a typical office lease in Australia?
It depends on the building. Serviced and flexible offices run from month to month out to twelve months. C and B grade office leases are commonly three to five years. A grade leases are usually five to ten years, and premium buildings often longer.
What is the difference between A grade and B grade office space?
A grade buildings are generally newer or comprehensively refurbished, with better services, lifts, end-of-trip facilities and floor plates, and they are leased on longer net leases with larger incentives. B grade buildings are older or less well specified, and are more often leased gross or semi-gross on shorter terms.
Do serviced offices require a bank guarantee?
Usually not. Serviced and flexible office agreements are typically licences with a deposit of one or two months rather than a bank guarantee, and there is no make good obligation at the end.
How large a bank guarantee will a landlord ask for?
It scales with the building grade, the length of the term, the size of the incentive and the strength of your covenant. Longer leases in better buildings with larger incentives attract larger guarantees, measured in months of gross rent.
Are these figures market averages?
No. They are leasing conventions that describe how deals in each grade are normally structured. For actual rents with sample sizes and as-at dates, use the Sidespace suburb rent benchmarks.
Keep reading

General information only. This guide explains how office leasing usually works in Australia. It is not legal, financial or tax advice, it does not take account of your circumstances, and lease terms and legislation change. Get advice on your own lease before you sign it.

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