Why do you need a tenancy agreement?
When taking on an allotment you are taking on the responsibility of a piece of land which is entrusted to you. The tenancy agreement tells you what you can and cannot do with the plot. The Council needs to ensure that you will manage the land in an appropriate way during your time as a plotholder, and ensure that the land will be in a fit state to rent out again to another person if you decide to move on.