Improved registration and visualisation of 3D real properties

The Swedish property register was introduced in the early 1960s as an IT-based register and is the Swedish government list of real property units with information on ownership, housing loans and other information.

The register is managed and developed by the Swedish mapping, cadastral and land registration authority, while updating the information in the register is done online by a number of authorities.

However, the register is not modern with regard to the content and e.g. the presentation of 3D property units (e.g. owner-occupied apartments) is made in a very rudimentary way and level. The digital information produced in the built environment process today is not fully utilised.

An investigation by the Swedish National Audit Office last year concluded, among other things, that the register was not modern and in several respects not appropriate as part of an increased digitized built environment process.

There is currently a government investigation into the development of the property register, but the investigation does not focus specifically on 3D property (according to conversations with the government´s special researcher).  rapid development in e.g. digitization of the detailed planning process and the building permit process is ongoing, which is already further along in development.

These and other initiatives that are pieces of the puzzle in an effective and sustainable digital built environment process are dependent on developments also around property data.The need for a clearer account of the property division in terms of 3D properties is also increasing, as the trend is towards the 3D properties that have been formed now also are beginning to be re-formed.This project aims to investigate how the property register and the current process can be modernised to achieve sustainable development and increased digitization through the registration of information that is not in the register today and how the information can be visualised, e.g. by using 3D building models in the presentation.The project is a continuation project and deals with proposals and recommendations for future research developed in four Smart Built Environment projects:The project Smart planning for construction: BIM as information support for 3D real property formation recommends that projects be carried out with in-depth legal studies in order to clarify the legal issues highlighted in the project.The project Smart planning, construction and management processes across the lifecycle.

Work package 3 Visualization of 3D properties recommends e.g. that it should be investigated how much resources are needed to register all the necessary (today partly analogue) information in order to be able to carry out a digital administration process.The project Smart Built Environment´s Standardization Strategy identified e.g. as an area for further study as data linked to 3D property information was not included in the project.The project DigSam - AP 1 Perceived legal obstacles for a digital built environment process recommended e.g. that in order to push forward the work with digitisation of the built environment process, there should be a deepening of identified legal obstacles and that the proposals for continued work from the report "BIM as information support for 3D real estate planning" (see above) are still relevant.In addition, there is the current 3CIM project on digital city models, which is being completed.

What is interesting, within the framework of our project, is that the city model 3CIM describes the physical environment in terms of content, information that is needed as a basis for a 3D index map.This project application has a very strong connection to the above completed and an ongoing Smart Built Environment project to further develop the digital built environment process in practice.Project results and deliverables:The expected results of the project are linked to the above problems and consist of:Compilation and mapping of current processes