Question: how much does it cost to extend a lease on a flat uk?
Answer: Typical cost to extend lease on £200,000 flat by 90 years. Typical cost to add 90 years to a lease, cost based on Leasehold Advisory Service data. Costs are per flat and can vary dramatically. Based on a £200,000 flat (£200,000 is its value with 999 year lease) with £200 annual ground rent.