Spatial planning is a critical element of Land Administration (LA), involving the assessment and management of land use, development, environmental protection, and the optimal utilization of land resources. Recognizing the significance of integrating spatial planning information into the Land Administration Domain Model (LADM) framework, LADM Edition II introduces a dedicated part for spatial plan information -Part 5. This paper delves into the conceptualization and development of the LADM Part 5 – Spatial Plan Information country profile for Greece (GR_SP_LADM). The development of this profile aims to enhance the applicability of LADM Edition II Part 5 and to support better planning, monitoring, and management of spatial data in alignment with Greek regulations.

Spatial planning in Greece operates on multiple levels—national, regional, and local/municipal—each corresponding to different scales of implementation. The national level offers broad spatial guidelines, while the local level focuses on community-specific planning, which may encompass one or more municipalities or even regional or hyper-local areas. Given the complexity of spatial planning processes in Greece, standardization is vital for ensuring interoperability across the different hierarchical levels of government and stakeholders. This paper aims to make the organization of spatial planning-related information in Greece more efficient and transparent, thereby promoting sustainable growth and urban development using consistent spatial data structures and clear legal and administrative procedures.

Therefore, the paper examines the country profiles of LADM Part 5 that have been developed (as in the case of Indonesia, Turkey and others), with a focus on the current state and evolution of spatial planning in Greece. It maps the existing spatial planning framework against the concepts and classes of LADM Part 5, resulting in the development of a tailored country profile for Greece. This profile is illustrated through UML diagrams and at the next step of this research, it will be implemented in a database and validated through instance-level diagrams and practical implementation using 2 case studies. Future work includes the comparison of the country profile for LADM Part 5 for Greece, with the profile developed for Turkey using corresponding use cases.@en