Construction Cost Index

The Construction Cost Index (for Dwellings) (CCI) measures the price development of: construction materials, labour cost, machinery, transport, energy and other costs that are used in the construction of a typical dwelling (8-10 floors). Base period of the index is Q.1.2011=100.

The Material costs index measures the price development of the main construction materials. This group consists of three subgroups:

  • Construction materials,
  • Electric and communication materials,
  • Hydro-sanitary materials.

The Labour costs index measures the salary for engineers, techniques and workers.

INSTAT collect, process and provide the Construction Cost Index (for dwellings) conform European regulation for short term statistics, no. 1165/98 data 19.05.1998, amended by 1503/2006.

Source of information

The data sources for CCI (for dwellings) are:

  • Survey on Cost Construction for the material costs;
  • Quarterly Survey of Enterprises (Module 122) for Machinery, Transportation and Wage Costs;
  • Producer Price Index (energy costs);
  • Consumer Price Index (other costs).
Next publishing
Construction Cost Index Q3 - 2017


Date Statistics Period
04-09-2018 Construction Cost Index for Dwellings Q2 -2018
04-12-2018 Construction Cost Index for Dwellings Q3 - 2018
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Construction Cost Index (CCI for dwellings) measures the price development of the production factors raw materials, labor, machinery, transports, energy and other costs that are used in building projects.

All data are index data and percentage changes (quarterly and yearly).

The construction cost index (for dwellings) reflects changes in the costs of construction work performed during the reference period compared with the base period.

For the calculation of the CCI (for dwellings), the following components are compared: prices of the building materials used, hourly gross labor remuneration of construction workers, maintenance and operational costs of machinery and mechanical appliances.


CCI (for dwellings) covers economic activities listed in sections F: “Construction” (Codes 41, 42, 43) and codes 46.73, 46.74, 47.52 of Wholesales activity, according to NACE Rev.2.

Classification system

The classification used for these statistics is the Statistical Classification of Economic Activities (NACE). The data are produced in national level, broken-down by activity grouped in two digits level of this nomenclature. The expenditure classification is based on classification of EUROSTAT for Construction Cost Index.

The CCI have six expenditure groups:

  • Material Expenditures
  • Salary Expenditures
  • Machinery Expenditures
  • Transport Expenditures
  • Energy Expenditures
  • Other costs.

Statistical unit  

The observation units for the CCI (for dwellings) are the Business Register Enterprises that conduct the following activities: distributors of construction materials and construction building companies.

Base period

Base period for the CCI (for dwellings) is the first quarter year 2011.

Reference period          

The reference period is quarterly.

Method of data collection

Data collection is carried out through the Survey on Construction Cost for dwellings. From a sample of statistical units are collected the price. Completion of the information is relayed by direct interview by the interviewer with the contact person of the enterprise who is charged to declare the data.


The questionnaire of CCI includes:

  • the identification part, which provides information on the name of the enterprise, name of the president, address, fiscal code, legal form, etc.
  • the technical part in which information is obtained on monthly prices and product specifications.

Price ratio

Is calculated automatically whenever price is entered, adjusted or imputed. It is the current price divided either by the actual base price or by an adjusted base price.


Arithmetically weighted averages of individual observations form the index numbers. The index is calculated by multiplying all weights by their corresponding index numbers (price ratio) then divide by the sum of the weights.


The imputation is done by multiplying the previous reported price by the average monthly price movement of the closest higher level of aggregation.

Index calculation

For calculation of index is used Laspeyres type and is calculated as following:


Measures of index

The annual change measures the price change between the current quarter and the same quarter of previous year. This measures is responsive to recent changes in price levels but can be influenced by one – off effects in either quarter.

Quarterly change measures the price changes between current quarter and previous quarter.