What does “Demised Premises” mean on the Deeds of my house? Should I be concerned?

“Demised Premises” is a reference to the extent of the land the subject of the deed and which you can expect to occupy or own. The use of the term “demise” usually refers to leasehold property, the subject of a Lease of land, and therefore the “Demised Premises” will represent a full description of the land which you can expect to acquire and which will be the subject of any such Lease.