Title
Towards an International Data Standard for Immovable Property Valuation
Author
Kara, A. (Yıldız Technical University)
Çağdaş, Volkan (Yıldız Technical University)
Işıkdağ, Ümit (Mimar Sinan Fine Arts University)
van Oosterom, P.J.M. (TU Delft OLD Department of GIS Technology)
Lemmen, Christiaan (Netherlands Cadastre)
Stubkjær, Erik (Aalborg University)
Contributor
Halme, Pekka (editor)
Date
2017
Abstract
Immovable property valuation is performed by public sector actors for several land management activities, such as property taxation, expropriation or compulsory purchase of land, land re-adjustment and land consolidation; and private sector actors perform valuation for purchase, real estate financing, investment analysis, and further property transactions. The valuation process returns estimated value (e.g. market value) of property units based on their legal, physical, geographic, economic, and environmental characteristics, as recorded at public registries or observed on location. The ISO 19152:2012 Land Administration Domain Model (LADM) presents a conceptual schema for the specification of property units and their legal and geometric characteristics recorded at cadaster and land register, and relates these datasets with other property related datasets (e.g., valuation, taxation, land use, land cover) recorded at external databases. A recently initiated collaborative research (see Çağdaş, 2016) aims at developing a data model for one of these external databases, in terms of a Valuation Module for the ISO 19152:2012 LADM which is supposed to define semantics of valuation databases maintained by public authorities especially for immovable property taxation. The present paper presents preliminary results of this initiative, and describes a draft version of the Valuation Module which specifies the input and output data used and produced when single or mass appraisal processes are performed according to published standards and recommendations. It also presents a questionnaire which was prepared to create an inventory of valuation applications all over the world, and will be used as source data for the elaboration of the draft module. The paper also opens a discussion about this initiative, and calls for contributions of other relevant bodies (e.g. FIG, OGC, TEGOVA, IVSC and IAAO) for the further development of the draft Valuation Module.
Subject
Immovable Property Valuation
SO 19152:2012 Land Administration Domain Model (LADM)
LADM Valuation Module
To reference this document use:
http://resolver.tudelft.nl/uuid:04b67a42-251a-480d-99fb-d9309daface5
Publisher
International Federation of Surveyors (FIG)
ISBN
978-87-92853-61-5
Source
Proceedings FIG Working Week 2017: Surveying the world of tomorrow – From digitalization to augmented reality
Event
FIG Working Week 2017, 2017-05-29 → 2017-06-02, Helsinki, Finland
Part of collection
Institutional Repository
Document type
conference paper
Rights
© 2017 A. Kara, Volkan Çağdaş, Ümit Işıkdağ, P.J.M. van Oosterom, Christiaan Lemmen, Erik Stubkjær