In commercial property leasing, rental terms are often structured over long lease periods. To account for inflation, market trends, and the evolving needs of both parties, rent review clauses are a critical part of most lease agreements. These mechanisms determine how rent is adjusted over time and can significantly influence whether a lease is renewed or renegotiated.
Three Common Methods of Rent Adjustment
In commercial leases, landlords typically use one of the following three methods to adjust rent:
1. Fixed Percentage Increase
This is the most straightforward method, where the rent increases by a fixed percentage annually or at agreed intervals—commonly:
- 3% or 4% per year
- 5% every two years
✅ Advantage: Predictable and simple budgeting for both parties, unaffected by external factors.
2. Consumer Price Index (CPI) Increase
Rent is adjusted according to the Consumer Price Index, reflecting general inflation in the economy.
- ✅ Pros: Tracks real-world changes in purchasing power
- ⚠️ Cons: High inflation can lead to steep rent increases
Some leases include “CPI + X%” structures to further protect the landlord’s return on investment.
3. Market Rent Review
When a lease includes a renewal option (Option to Renew), or when the lease term spans many years, a Market Rent Review clause is often used.
This allows the landlord to reassess the rent based on current market conditions, ensuring:
- The rent stays aligned with prevailing market rates
- Neither party is locked into a rate that is significantly above or below market value
- Fairness is maintained over the long term
How Market Rent Review Works – Opportunities and Risks
While Market Rent Review provides flexibility, it also carries potential risks and disputes:
- Disagreements in valuation: Landlord and tenant may differ on what the market rent should be
- Need for a professional valuer: Some leases specify that if the parties can’t agree, an independent valuer must determine the rent
- No rent caps or floors: If the lease doesn’t specify a minimum or maximum adjustment, rent could increase—or decrease—significantly
💡 Key considerations when drafting or reviewing Market Rent Review clauses:
- Who initiates the review?
- Will the rent be assessed on a net or gross basis?
- Is there a cap (maximum) or floor (minimum) on the adjustment?
- Is the valuer’s decision final and binding?
Common Scenario: Market Rent Review During Lease Renewal
Market reviews are most commonly triggered when tenants exercise their option to renew the lease. In such cases:
- Rent for the renewed term is not automatically based on the previous rate
- Landlords may propose a higher rent aligned with the market
- Tenants often seek to minimise increases or maintain similar terms
- If no agreement is reached, the lease may provide for referral to a valuer
⚠️ Tenants should always consult a lawyer before exercising an option, as timing, notice requirements, and review clauses can materially affect the outcome.
ENSURE LEGAL’s Guidance and Support
📌 Whether you’re a landlord or a tenant, understanding how rent is reviewed is essential for managing your financial position and commercial rights.
We recommend:
- Having a lawyer review the lease agreement before signing—especially the rent review clauses
- Seeking legal advice early, before disputes arise around Market Rent Reviews
- Taking action well in advance of option dates or renewal deadlines to protect your position
📞 At ENSURE LEGAL, our team has extensive experience advising clients on commercial lease negotiations, rent reviews, and dispute resolution. If you’re reviewing a lease, preparing for a renewal, or facing a Market Rent Review, contact us today for clear, practical legal advice that protects your business interests.
