Towards Turkish LADM valuation information model country profile

Abdullah Kara, Volkan Çağdaş, Ümit Işıkdağ, Peter van Oosterom, Christiaan Lemmen, Erik Stubkjær

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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    A recently established joint working group under International Federation of Surveyors (FIG) Commission 9 (Valuation and the Management of Real Estate) and FIG Commission 7 (Cadastre and Land Management) has started the development of an information model for the specification of valuation information maintained by public authorities especially for property taxation. In this initiative, ISO 19152:2012 Land Administration Domain Model (LADM) has been taken as the basis for the development of a Valuation Information Model. A first version of the LADM Valuation Information Model was created based on international standards, literature survey and data gained from questionnaires replied by the national delegates of FIG Commission 9 and FIG Commission 7. The planned further works include (i) creating country profiles, and (ii) development of prototypes for the assessment of country profiles and conceptual model itself.

    This paper presents an overview of immovable property valuation conducted for taxation purposes in Turkey. Based on this overview, it also proposes a country profile of LADM Valuation Information Model in Turkey case. The country profile covers valuation activities for annually levied recurrent property taxes (i.e. Land Tax and Building Tax) in Turkey, characteristics and spatial aspects of valuation units used in property valuation, property valuation approaches employed for property taxation, transaction prices used in valuation procedures, parties involved in valuation practices, and information on taxes on immovable property. The profile also includes the content of code lists that detail administrative valuations in relation to property tax assessments in Turkey. The proposed profile is evaluated with Unified Modeling Language (UML) instance level diagrams in examples of property taxes on land and building in Turkey for assessing whether the profile fulfills the needs of information management aspects of valuation activities for property taxation. Towards
    Original languageEnglish
    Title of host publicationProceedings of the FIG Congress 2018
    Subtitle of host publicationEmbracing our smart world where the continents connect: enhancing the geospatial maturity of societies
    PublisherInternational Federation of Surveyors (FIG)
    Number of pages23
    ISBN (Electronic)978-87-92853-78-3
    Publication statusPublished - 2018
    Event26th FIG Congress 2018 "Embracing our Smart World Where the Continents Connect: Enhancing the Geospatial Maturity of Societies - Istanbul, Turkey
    Duration: 6 Feb 201811 Feb 2018


    Conference26th FIG Congress 2018 "Embracing our Smart World Where the Continents Connect


    • LADM Valuation Information Model
    • ISO 19152:2012 Land Administration Domain Model (LADM)
    • Immovable property valuation
    • Turkey Country Profile


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