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Background Notes

Background Notes

CSO statistical release, , 11am
A CSO Frontier Series Output

This publication is categorised as a CSO Frontier Series Output. Particular care must be taken when interpreting the statistics in this release as it may use new methods which are under development and/or data sources which may be incomplete, for example, new administrative data sources. 

Sources and Methods

National Accounts provide a coherent and detailed picture of a country’s whole economy using international statistical standards. For this publication we have brought together the work done in these publications and narrowed the focus from the whole economy to provide insights into the Construction sector.

This analysis of the Construction sector describes the sector in detail drawing on many CSO outputs, including:

All data taken from the Annual National Accounts uses the 2025 vintage (with reference year 2024). We also use statistics from other agencies to provide a detailed economic portrait of the Construction sector in Ireland:

This is a Frontier Publication and the evaluation of sources and methods is subject to review and improvement.

Definitions

Gross Value Added (GVA) and its components are calculated in current prices throughout. GVA is given as follows:

Gross value added at factor cost: 

Compensation of employees 

plus

Gross mixed income 

plus

Gross operating surplus

Gross value added in basic prices:

Gross value added at factor cost

plus

Non-product taxes

minus

Non-product subsidies

Gross domestic product at market prices:

Gross value added in basic prices

plus

Product taxes

minus

Product subsidies

Gross National Product:

Gross domestic product

plus

Factor income received from abroad

minus

Factor income sent abroad

Gross National Income:

Gross national product

plus

Subsidies received from abroad

minus

Subsidies sent abroad

Modified Gross National Income (GNI*):

Gross national income 

minus

Depreciation on intellectual property

minus

Depreciation on leased aircrafts

minus

Net factor income on redomiciled PLCs.

Gross Fixed Capital Formation (GFCF): GFCF measures the acquisitions less disposals of fixed assets during a calendar year. More information on GFCF and assets types can be found here.

Classification of Economic Activity

This publication groups businesses by activity (also referred to as industry) using the EU’s Statistical Classification of Economic Activities in the European Community (NACE) Rev. 2 grouping. The construction sector is broken down into a number of subsectors, as shown in Table 5.1. Some of the statistics in this publication are produced at the two-digit NACE level i.e. Construction of Buildings, Civil Engineering and Specialised Construction Activities. Where possible and appropriate, statistics are published by subsectors.

Table 5.1: Economic Activities in Construction

Productivity

Further information on the terminology and data used in the Productivity chapter can be found here: Productivity in Ireland.

Confidentiality

The CSO cannot publish any commercially sensitive information (for example, company wage bills), or any statistics that would allow readers to easily infer data for a single company. For this reason, data is put together into larger groups (aggregated) so that no single statistic is completely dominated by a single company. While more detail would generally be preferable, by keeping some statistics confidential, the CSO can assure survey respondents that their data will not be shared, and this provides higher quality statistics overall.