Lease Extension Calculator beta
Rough statutory estimate from minimal inputs. For guidance only.
Assumed value on a long lease (peppercorn). If unsure, use your best estimate.
If < 80 years, marriage value is applied.
Results update instantly after you click Calculate (or change a number).
Advanced (optional)
Present value of reversion (default 5%).
Capitalisation rate for ground rent (default 7%).
Ground rent (PV)
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Reversion (PV)
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Marriage value (if < 80y)
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Estimated premium
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This is a simplified, non-binding estimate based on rough assumptions and an approximate relativity curve.
Actual premiums depend on detailed valuation (deferment/cap rates, relativity evidence, ground rent terms, improvements, rights), negotiation, and case law.
For a formal figure, please obtain a specialist valuation.
Estimate Your Lease Extension Premium
Please complete the fields as accurately as possible in order to receive a FREE initial estimate of your lease extension premium from one of our friendly experts. We can also offer you a complete valuation, negotiation and legal representation in tandem with our associated law firm. We will provide you with a global estimate to include all of the professional costs that are payable in addition to the premium itself so you can move forward with confidence.
Alternatively, feel free to call us directly to discuss your case on:
