• The number of years left on the lease. For example, if you were granted a 125 year lease in 1975, and it is now the year 2010, then you have 90 years left on the lease.
  
  Once a property has less than 80 years left on the lease, the price to by the freehold or extend the lease increases dramatically. Try to extend your lease, or buy the freehold, before the lease drops below 80 years.