Accuracy and reliability
Contact info
Government finance statistics, Economic Statistics.Mikkel Bjerre Trolle
+45 29 36 68 25
Get as PDF
The adjustment factor is the same within a geographic area, even though the actual sales value can vary a lot due to e.g. differences in the location of the owner-occupied dwellings (amenity), which are not reflected completely in the official real estate valuations. The preliminary year are dependent primarily on sales data for real estate. When the final year are calculated all of the sources are available. Experience from 2019 and 2020 shows that the preliminary year tends to underestimate the total market value of the final year.
Overall accuracy
To calculate the market value of real estate, the statistics used a correction factor, which adjusts the level of the value, so it corresponds to the market value. Use of correction factors are an average which does not take into account the individual differences between the properties.
Sampling error
Not relevant for this statistics.
Non-sampling error
The market value may depend on factors other than the property's location and price level. Examples of other factors which affect the market value include distance to the coast (especially holiday cottages), distance to shops and public transport, the age and condition of the property.
Quality management
Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.
Quality assurance
Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.
Quality assessment
The calculation of the market value of real estate is based on information contained in the Register with Official Real Estate Valuations, the Building and Real Estate Register, the Business Register and Register for Personal Data (PSD). The quality of data is high because the registers are validated and updated continuously.
Data revision - policy
Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.
Data revision practice
Not relevant at this time