The purpose of the construction cost index for residential buildings is to measure the development in construction costs. The present construction cost index is published from the first quarter 2003 and replaces the former construction cost index which has been published from 1987 until the second quarter 2003. As of the 1st quarter of 2016 both the index base year and the weight base year have been changes to 2015=100.
The construction cost index for residential buildings is also divided into an index for one-family houses and one for multi-family houses. All indices are further more broken down into eight sub-indices by profession and six sub-indices by building parts. Both the total indices and the sub-indices are divided into material and labour costs.
The Construction cost index i based in three actual constructions. The constructions are typical for the construction of residential building in Denmark and are selected on the basis of an analysis of the current construction. The costs of the three constructions forms the weights of the indices. These weights are used to weigh together the prices of the cost components. For the construction cost index price data that has already been collected by others in Statistics Denmark is used.
The index is used for contract regulation and to follow the economic development in construction costs. The users of the construction cost index are construction organisations, contractors, building owners, lawyers, public authorities and the EU.
The construction cost index for residential buildings covers the typical house building in Denmark. The concrete buildings have been chosen on the basis of an analysis of the typical house building from the Central Register of Buildings and Dwellings (BBR). Prices for materials and equipment are mainly collected from the Price Index for Domestic Supply. The prices for the total labour costs are mainly collected from the Indices of Average Earnings for the Private Sector. All prices are collected by questionnaires. Measures on accuracy are not available.
The Statistic is quarterly, primo march (Q¤4), medio June (Q1), primo September (Q2) and primo December (Q3).
See "Comparability over time (QPI/CC for U)".
The statistics are published in Nyt fra Danmarks Statistik (News from Statistics Denmark) and in Byggeri og boligforhold (Construction and housing) which appears in Konjunkturstatistik (Main indicators).
Yearly publications: Statistical Yearbook and Statistical ten-year review
Furthermore, it is possible to subscribe to the construction index by postcards.