Related Content: CityGML


Overview The CityGML standard defines a conceptual model and exchange format for the representation, storage and exchange of virtual 3D city models. It facilitates the…

OGC Seeks Public Comment on adoption of new version of CityJSON as Community Standard

CityJSON is a web-friendly encoding of the CityGML data model, which is used in Digital Twins and other uses pertaining to built and natural environments. Public comment period ends 1, February 2023.

OGC adopts CityGML 3.0 part 2 GML encoding as official standard

OGC adopts CityGML 3.0 Part 2: GML Encoding as an official OGC Standard

New encoding for CityGML version 3.0 can be used to store and exchange 3D city models in the GML format as data sets or via web services.

OGC Membership approves the CityGML v3.0 Conceptual Model as official OGC Standard

The Open Geospatial Consortium (OGC) is excited to announce that the OGC Membership has approved the CityGML v3.0 Conceptual Model for adoption as an official OGC Standard.The CityGML 3.0 Conceptual Model Standard describes a common semantic information model for the representation of 3D urban objects.An improved information model for buildings with increased interoperability with the EU INSPIRE building information model and the OpenBIM IFC standard.However, for those looking to take advantage of the new features, existing CityGML data can be upgraded to CityGML 3.0.As with any OGC standard, the open CityGML 3.0 standard is free to download and implement.

How OGC Contributes to FAIR Geospatial Data

Standards are a key element of the FAIR Principles of Findability, Accessibility, Interoperability, and Reusability. As such, the Open Geospatial Consortium (OGC) has been supporting the FAIR Principles for geospatial information since its formation 30 years ago. This blog post offers an overview of select OGC Standards and components that support FAIRness in geospatial data.


ACCORD will develop a semantic framework for European digital building permitting processes, regulations, data and tools. This
framework will drive rule formalization and integration of existing compliance tools as microservices. Solutions and tools are to be
developed, providing consistency, interoperability and reliability with national regulatory frameworks, processes and standards. The
solutions are implemented and demonstrated across construction projects in various EU regulatory contexts: UK, Finland, Estonia,
Germany and Spain.