TOOLS

Lease Extension Calculator

Estimate the statutory premium to extend a flat's lease under the Leasehold Reform, Housing and Urban Development Act 1993. Enter your property details below for an instant estimate.

Flat Market Value
£50k£2.0m
Years Remaining on Lease
1 yr150 yr
Annual Ground Rent
£0£5,000

Marriage value applies — lease under 80 years. The freeholder receives 50% of the uplift in value.

Estimated Premium

£17,324

Ground Rent (capitalised)£4,114
Deferred Reversion£5,410
Marriage Value (50%)£7,800
Current Leasehold Value£283,800
Extended Leasehold Value£299,400

Illustrative estimate based on standard 6% capitalisation and 5.5% deferment rates. Actual premium requires a professional RICS valuation. Seek specialist leasehold advice before proceeding.