The different existing definitions of real property rights and restrictions make an understanding of this part of the cadastral domain difficult. Such lack of understanding is a major barrier to effective information interchange and standardisation. A terminological and legal approach focusing on the classification of real property rights and restrictions in a legal cadastre model centred on the right of ownership might be a way to gain a better understanding and be a step towards an improved standardisation of the domain. This paper is intended to serve as an introduction to a recently published hypothesis stating that it is possible to create a general model describing formal real property rights and restrictions. The model is a step towards a standardized approach towards the cadastral domain in general and the modeling of real property rights and restrictions and placing them in an ontological framework.