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Lease indexation is the contractual mechanism that adjusts rent over time to reflect inflation or market movements. Common approaches include fixed‑step increases (for example, annual percentage uplifts), retail price index (RPI) or consumer price index (CPI) linked clauses, and market‑linked or open market rent reviews. Historically, many UK leases used RPI linkage; following statistical changes and wider policy shifts, many new agreements reference CPI (or CPIH) or use fixed increases to provide greater certainty.
The choice of index matters for both upside and downside. RPI historically ran higher than CPI, but the differential has varied. An inflation‑linked lease can protect landlords against erosion of real income in inflationary periods; however, it also transfers inflation risk to tenants, which can affect tenant affordability and covenant strength. Conversely, fixed increases provide predictable cash flow but may lag actual inflation, affecting real returns.
For fractional investors, particularly those holding income‑oriented exposures, the precise indexation wording is a key due‑diligence item. Investors should review lease clauses for timing of reviews, any caps or collars, the reference period for indexation, and de‑linking events such as early termination rights. Aggregated across a portfolio, indexation characteristics influence the fund’s inflation sensitivity and the expected volatility of distributions.
When evaluating tokenised or fractional property offerings, retail savers should ask platforms to disclose how rents are indexed across the asset base, the share of leases with market‑linked reviews, and the historical behaviour of the chosen indices. Clear disclosure of indexation practices makes it easier to assess whether a fractional investment aligns with an investor’s income and inflation‑protection objectives.