This chapter aims to understand the different aspects of the definition of land. It explains what is meant by an estate in land. The chapter explores what rights a landowner will have over the surface area of the land. It describes what rights a landowner has over items found in the land or on the land. The chapter also aims to understand the difference between a fixture and a chattel. The doctrine of accretion is the legal mechanism employed to resolve disputes arising through changes in land bordering water. Land law is the study of the relationship between land and the owner of that land. Land also has a three-dimensional quality – a surface area, the airspace above it and the ground below – and also a possible fourth dimension which is made up of rights and interests in the land and, more importantly, the length of time that owner can enjoy the land.