- The smallest tribunal-determined premium in the dataset is £14 — a lease with 87 years remaining and a peppercorn ground rent.
- Nine decisions produced premiums below £1,000; all shared long leases and negligible ground rent.
- Very low premiums almost always involve leases well above the 80-year marriage-value threshold.
- Ground rent structure is the most powerful lever at the low end — a nominal or peppercorn rent removes most of the freeholder's compensable interest.
The ten smallest tribunal-determined premiums
The smallest premiums in the LeaseIntel dataset arise from a very specific set of circumstances: long unexpired lease terms (typically above 80 years), very low or zero ground rents, modest property values, and in some cases unusual lease structures such as intermediate head leases where the reversion is shared across multiple flats.
Several cases in the bottom ten involve flat blocks where the tribunal was determining the premium for a share of a collective enfranchisement or an intermediate lease, rather than a standard individual lease extension — which can produce much smaller figures than a straight individual extension would imply.
| Premium determined | Years remaining | Address | Region |
|---|---|---|---|
| £14 | 87.28 yrs | Catherine Place, London SW1E | London |
| £20 | N/A | Temple Road, London NW2 | London |
| £250 | N/A | Clarges Street, London W1J | London |
| £360 | N/A | Oxford Road, Reading | Eastern |
| £464 | N/A | Long Lane, London EC1 | London |
| £465 | N/A | Campden Hill, Kensington, London W8 | London |
| £525 | N/A | Stornoway Road, Castle Vale, Birmingham | Midlands |
| £650 | N/A | Salterford Road, London SW17 | London |
| £686 | N/A | Greenfield Way | Northern |
| £700 | 80.5 yrs | Stoke Newington Road, London N16 | London |
What makes a lease extension very cheap
The premium formula produces very small figures when three conditions align: a long unexpired term (usually 80 years or more), a low ground rent (especially a peppercorn), and a modest property value. In these circumstances, the reversion value is small (because the freeholder gets the property back far in the future), the capitalised ground rent is negligible, and no marriage value is payable.
The £14 decision — the smallest in the dataset — involved a property on Catherine Place, London SW1E with 87 years remaining and what appears to have been a nominal ground rent. The reversion was so far distant and the ground rent so low that the calculated premium reduced to a purely nominal sum. Cases of this type are sometimes called "peppercorn extensions" informally, though the formal term still involves a calculated premium above zero.
Is a cheap extension always a good deal?
A low premium does not necessarily mean the extension was cost-free. The legal costs of a statutory lease extension — surveyor fees, solicitor fees, tribunal application costs — can easily reach £3,000–£8,000 or more, regardless of the premium itself. For a property with a very long lease already, these professional costs may actually exceed the premium payable.
This raises a practical question about timing. A property owner with 85 years remaining paying a premium of £700 would pay more in professional fees than in the premium itself. Waiting until the lease falls to, say, 75 years would increase the premium — but professional costs would remain similar. Understanding when it is economically rational to extend is a question of modelling the total cost at different lease lengths, not just the premium in isolation.
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Check My QuoteFrequently asked questions
Methodology
LeaseIntel analyses published First-tier Tribunal (Property Chamber) decisions on lease extension premiums. Each decision 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.
- Analyses only include decisions containing the specific lease-term and valuation data required for that study.
- Cases are grouped by unexpired term at the valuation date (not the date of the decision).
- Sample sizes vary between analyses because not every decision records every variable.
- Small sample groups are flagged with a confidence indicator and interpreted cautiously.
- Where decisions span multiple flats or hearings, each lease is treated as a separate observation.
Read the full LeaseIntel methodology for dataset construction, variable definitions and validation checks.
Limitations & Caveats
- Tribunal decisions represent disputed cases rather than the entire market.
- Not all decisions contain every data field.
- Sample sizes vary by analysis.
- Small sample groups should be interpreted cautiously.
Benchmark your quote
These figures represent the lowest end of the LeaseIntel dataset. Your own premium depends on your lease length, property value, ground rent terms and the specific circumstances of your case. LeaseIntel compares your circumstances with similar tribunal decisions to provide a personalised benchmark.
Is My Lease Extension Quote Too High?Independent · Not a valuation or legal advice · Tribunal outcomes, not formula estimates