About LeaseIntel Research

LeaseIntel Research exists to make the outcomes of UK lease extension disputes readable, comparable and useful. Leaseholders, freeholders, solicitors, surveyors, journalists and researchers should be able to see how the First-tier Tribunal (Property Chamber) actually values lease extensions — not just the theory.

We do this by maintaining a structured dataset of published tribunal decisions and producing original analysis of the variables that drive premiums.

• Independence. Analysis is produced independently of any party to lease extension disputes.
• Transparency. Sources, sample sizes and methodology are disclosed on every report.
• Objectivity. Reports describe what tribunal decisions show, not what any party would like them to show.
• Corrections. Material errors are corrected promptly and disclosed in the report's update history.

Full editorial standards are published on the editorial policy page.

Each published First-tier Tribunal (Property Chamber) decision on a lease extension premium is parsed into a structured record covering unexpired term at the valuation date, property value, ground rent profile, deferment and capitalisation rates, marriage value treatment and the final premium determined.

Reports draw on subsets of that dataset — analyses only include decisions containing the specific variables required for the study. Sample sizes are stated on every chart and table. Small samples are flagged with a confidence indicator.

Read the full methodology →

• Published decisions of the First-tier Tribunal (Property Chamber).
• Public leasehold enfranchisement and lease extension case reports.
• Ancillary public data (e.g. valuation date context) where relevant.

LeaseIntel Research does not use unpublished or confidential material.

The dataset is refreshed as new First-tier Tribunal decisions become publicly available. Reports that draw on updated data are re-run and re-published with a new "Last updated" date. Structural changes to a report's methodology are disclosed in its update history.

Each new decision added to the dataset is validated against the source document for the key numeric fields (unexpired term, property value, premium, deferment rate, capitalisation rate). Aggregated outputs are cross-checked against the source records before publication.

• Tribunal decisions represent disputed cases, not the entire market.
• Not every decision reports every variable.
• Sample sizes vary between analyses.
• Small samples are interpreted cautiously and flagged as such.

Journalists, researchers and industry professionals can contact LeaseIntel Research for commentary, custom data cuts or collaboration on tribunal-driven analysis.

Research & Media Enquiries: leaseintel@geoff.money