Definitions of leasehold
a piece of real property (=buildings and land) that is leased; the use of this real property
We are offering a special deal on leaseholds that have been on our books for more than six months.
if a piece of real property (=buildings and land) is owned as a leasehold then it can be owned or used for the period of time specified in the lease (=a contract for the use of a piece of real property)
I bought my flat leasehold 5 years ago.