Premises are land and buildings together considered as a property. This usage arose from property owners finding the word in their title deeds, where it originally correctly meant 'the aforementioned; what this document is about', from Latin prae-missus = 'placed before'. Premises are land and buildings together considered as a property. This usage arose from property owners finding the word in their title deeds, where it originally correctly meant 'the aforementioned; what this document is about', from Latin prae-missus = 'placed before'.