Rent changes. Value follows.

You like the current rent. What about the formula?

You’re buying the income stream. Make sure you understand how it changes.

Are you looking at the right numbers?

You’ve found a tenanted warehouse. The yield stacks up. The tenant is paying. The lease term looks solid. So you look at the rent, run the numbers, and feel settled.

Here’s the problem. The rent you can see is today’s number. What you are actually buying is how that number behaves over the next five, ten, or fifteen years. And that is determined not by the market, not by the tenant, but by a clause buried in the body of the lease that most buyers never read carefully.

The rent review mechanism. It governs when rent changes, how it is calculated, and whether it can fall as well as rise. Get it right and your income stream is predictable, defensible, and financeable. Get it wrong and you may own an asset whose income behaves nothing like you modelled. Queensland warehouse buyers often focus on the current rent. But what about the formulas that determine how that rent changes?

What if you don’t understand the mechanism?

A tenant came to us about their retail shop lease. Four years after a rent review date had passed unnoticed, the landlord reviewed their portfolio and issued a backdated demand. Four years of underpaid rent, due immediately. The review mechanism had been there the whole time. Nobody had read it properly. We did and because it was a “ratchet clause”, the landlord couldn’t enforce the demand. The backdated claim disappeared. Happy tenant, unhappy landlord.

Maybe your finance model assumes rent grows at three percent annually. The lease delivers CPI with no floor. Inflation turns negative. Rent falls. Your serviceability tightens at refinancing.

Or: the lease contains a market review at the start of the option period, with no ratchet clause. The market has softened. The tenant exercises their option at a lower rent. Your yield drops on the day they exercise the option.

Or: the lease combines fixed annual increases with a market review at option commencement. You modelled the fixed increases. You were surprised at the market review.

These are not edge cases. The clauses that control your rent income are not details. It’s the value of what you are buying.

Four clauses. Four very different incomes

Fixed percentage increases. Rent rises by a set percentage at each review date, typically annually. Common rates in Queensland warehouse leases sit around three to four percent. The appeal is predictability, you know the rent at every point in the term before you sign. The limitation is that a fixed rate can diverge significantly from market over time, in either direction.

CPI-based reviews. Rent moves with the Consumer Price Index. In theory, your real yield is protected because lower CPI broadly means lower prices. In practice, a pure CPI mechanism can move rent down as well as up, if CPI falls, so can rent. Many Queensland commercial leases include a floor or collar that prevents this, but that protection comes from the drafting, not the mechanism itself. If your clause has no floor, deflation is your problem too. Understanding exactly what caps and collars apply is critical. Retail shop leases are affected by legislation but warehouses usually use normal commercial leases.   

Market reviews. Rent is reset to the current market rate, most commonly at the start of an option period. Unlike (well drafted) fixed or CPI reviews, a market review can produce a reduction. If market rents have softened, a market review without a ratchet clause hands the tenant a lower rent for the next term. That is a direct hit to your yield and your valuation.

Ratchet clauses. A ratchet clause prevents rent from falling below its pre-review level regardless of what the market produces. It protects your income floor and is viewed favourably by lenders and valuers. The nuance: a tenant who knows rent can’t fall at a market review has less incentive to accept that clause in their lease. And a tenant who feels the ratchet is unfair in a softening market may not renew. The protection is real but so is the impact on the tenant relationship. Retail shop leases are affected by legislation which prevents ratchet clauses, but warehouses usually use normal commercial leases.

Where the real risks hide

Vague comparable premises definitions. A market review clause needs a clear definition of what comparable premises means. Without it, determining the market rent can become a dispute. How much rent does the tenant pay during the valuation? What condition are the premises assumed to be in? New lease or renewal basis? Are incentives excluded? The answers determine whether rent is a defined, dependable amount. An ambiguous lease leaves the figure open to negotiation, and a sharp tenant will figure that out.

Face rent versus effective rent. If the tenant is receiving rent-free periods, fitout contributions, or other concessions, the “face rent” amount may not reflect the effective rent. A market review conducted off the face rent rather than the effective rent may produce a result that does not reflect market reality. Side agreements that affect the tenant’s position need to be read alongside the lease.

Option timing and review sequencing. Some leases require the tenant to decide whether to exercise their option before the market review for the next term is complete. The tenant would have to commit without knowing the rent. A smart tenant may figure that out, and may try to negotiate some certainty before they exercise. You’re already committed either way. It’s worth understanding the sequencing before you sign.

Mechanisms that interact. Fixed annual increases during the fixed term, market review at option commencement. Each clause reads clearly in isolation. Together they can produce outcomes that neither party anticipated. Checking likely income over the full term, including options, means reviewing how the mechanisms interact,  not just what each one says on its own.

Before relying on the income

Read the rent review clause, not the summary. Marketing materials show the current rent. The lease shows the mechanism. The lease is king. Establish exactly what mechanism applies, when reviews occur, and whether different mechanisms apply at different points in the term.

Model the full term, including options. Run the numbers under the actual mechanism, across multiple scenarios. What does the income look like if CPI runs low? If the market softens at option commencement? If the ratchet is not there? Some scenarios that feel unlikely at acquisition might be real by year eight.

Check whether the mechanism matches your strategy. A fixed increase structure suits a buyer who wants predictability and low dispute risk. A market review with a ratchet suits a buyer who wants upside exposure with a protected floor. Neither is inherently better. The question is whether this mechanism, in this lease, lines up with what you are trying to achieve and what your lender needs to see.

Study the lease now. Or pay later.

Understanding the rent review structure before contract signing means you know how the money works in reality. Your yield projections are defensible. If the mechanism does not suit your strategy, you still have room to negotiate.

Discovering the details after settlement means you work with the income as it is. Yield that grows more slowly than modelled. Serviceability that tightens at refinancing. A market review dispute with a tenant you need to keep. Those are problems that belong to you from the moment you take title.

How we help

When we review a warehouse lease, we understand the rent review clauses have both financial and legal effects. We identify the mechanism, support you to model the income over the full term under realistic scenarios, and flag anything in the drafting that creates ambiguity or dispute risk.

You know the future income stream, not just the current rent. Where there is room to negotiate better protections or cleaner drafting before contract signing, we identify that while your leverage is intact.

We study the lease so you know what you’re buying.

Before you rely on the income stream

When you buy a tenanted warehouse, you are buying a future income stream governed by a clause most buyers skim. The rent today is the starting point. The review mechanism determines where it goes.

If you are assessing a tenanted warehouse and want a proper read on the rent review structure before contract signing, get in touch to book a call.