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Rent review clauses set how and when rents are adjusted during a lease term. Market rent reviews reset rent to prevailing market levels, often every three to five years, and can create step changes or volatility in income. Indexation clauses link future rents to an inflation measure, most commonly CPI in current practice; historically some contracts referenced RPI. The choice of index affects how rental income moves with inflation and with changes to the statistical basis of indices.
Other mechanisms include fixed stepped increases, turnover‑based rents where rent depends on tenant sales, and hybrid models combining indexation with periodic market reviews. Each form allocates inflation and demand risk differently between landlord and tenant: indexation tends to pass inflation risk to tenants, while market reviews pass demand and rental value risk to landlords.
For investors, understanding rent mechanics is critical to modelling cashflows and assessing risk. Long leases with strong indexation can provide predictable inflation‑linked income but may lag market upside. Shorter leases with frequent market reviews increase exposure to occupational market cycles. Lease covenants and tenant creditworthiness remain equally important because contractual rent mechanisms are only as valuable as the tenant’s ability to pay.
Retail investors exploring fractional property shares should look for transparent disclosures about lease types across the underlying portfolio and how rent review and indexation clauses are expected to influence income stability over time. Clear explanations help non‑professional investors compare income characteristics between different property strategies.