If a lease has less than 80 years remaining the increase in the value of your property caused by Freehold Purchase must be shared 50:50 with the Freeholder. This is known as "Marriage Value". For flats which do not take part in the process, the freeholder may need to be compensated for missing out on hypothetical profits due from non-participating flats seeking future lease extensions. This gives the freehold an additional "Hope Value".