Real Estate & Mortgage
UK Lease Extension Cost
Estimate the premium payable to extend a short UK leasehold flat lease.
Your inputs
Change any value to update the result instantly.
Estimated lease extension premium
26,500
Marriage value component
10,294.1176
Ground rent capitalised value
2,000
Years remaining
75
This is a rough approximation. Actual UK lease extension premiums require a RICS valuer using the statutory formula.
Formula and working
Premium ≈ (Marriage value) + (Reversion loss) + (Loss of ground rent), roughly rising sharply below an 80-year lease
- 1
Collect the inputs
Current property value (long lease) = 350,000; Years remaining on lease = 75 years; Annual ground rent = 200
- 2
Apply the formula
Premium ≈ (Marriage value) + (Reversion loss) + (Loss of ground rent), roughly rising sharply below an 80-year lease
- 3
Result
Estimated lease extension premium = 26,500
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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