The Land Administration Domain Model, LADM, passed on the 1st of November 2012 unanimously the final vote towards becoming an international standard, ISO 19152. Based on the standard this paper is a proposal for a more detailed classification of interests in land as modelled within LADM and an attempt to raise the awareness of the possibilities to further develop the LADM‟s rightt, restrictionn and responsibilityy (RRR) classes. The current standardised classification of RRRs in the LADM is restricted to a top-level classification of RRRs. In this paper the authors use the classification of interests in land described in the newly developed Legal Cadastral Domain Model, LCDM, to further develop the LADM. The LDM is based on comparative international legal investigations, including case studies from Portugal, Germany, the Netherlands, Ireland and Sweden.