Construction, housing and property;Construction, housing and property;Svalbard
bygningsmasse, Building stock, buildings, residential buildings, holiday houses, cabins, commercial buildingsConstruction, housing and property, Dwelling and housing conditions , Construction , Construction, housing and property, Svalbard

Building stock


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Key figures


million buildings in Norway 1. January 2018

Building stock by type of building
201420182014 - 2018
In all4 053 7694 165 364111 595
Residential buildings1 500 8411 545 89945 058
Non-residential buildings2 552 9282 619 46566 537
Residential buildings
Detached house1 148 9431 167 54818 605
House with 2 dwellings165 792166 582790
Row house, linked house and house with 3 dwellings or more154 366166 72212 356
Multi-dwelling building36 25339 8533 600
Residence for communities4 7525 194442
Non-residential buildings
Holiday house, garage linked to dwelling etc1 802 7651 869 39766 632
Of which:
Chalet, summerhouses etc.416 621431 02814 407
Detached houses and farmhouses used as holiday houses32 53932 891352
Industrial building105 235109 6244 389
Agricultural and fishery building506 027499 083-6 944
Office and business building38 81438 8195
Transport and communications building10 89811 788890
Hotel and restaurant building31 38632 066680
Building used for education, research, public entertainment and religious activities47 31648 125809
Hospital and institutional care building5 6345 65723
Prison, building for emergency preparedness etc.4 8534 90653

About the statistics

Building stock statistics gives an overview of number of buildings in Norway by type of building and county/municipality. The statistics has been published since 1997.


Definitions of the main concepts and variables

Building : As a main rule, freestanding building units are to be given a unique building number. Combined units can be assigned individual building numbers when the building parts can be torn down independent of each other.

Row houses in which each dwelling unit lies on the ground are assigned one building number for each dwelling. Vertically divided semi-detached houses in which the housing units are equal shall be given one building number for each unit. On the other hand, horizontally divided semi-detached homes, four-unit houses and larger residential buildings in which the housing units lie on top of each other are assigned one building number for the entire building.

Standard classifications

Type of building is established according to function. Combined buildings, for instance combined dwelling and business buildings, are grouped by the function that occupies the main part of the utility floor space.

Administrative information

Name and topic

Name: Building stock
Topic: Construction, housing and property

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Responsible division

Division for Housing, Property, Spatial and Agricultural Statistics

Regional level

County level. Breakdown on municipal level is available.

Frequency and timeliness

Annually. Numbers are normally published in February.

International reporting



The number of buildings broken down by each type of building and each municipality is until 2005 stored in Excel spreadsheets for each year.

From 2006 micro data are stored as text files on UNIX.


Background and purpose

The purpose of the statistics is to provide an overview of the number of buildings in Norway, broken down by type of building and counties/municipalities. The statistics have been published since 1997.

Users and applications

Users of the statistics include the municipalities, the building and construction industry and various organizations and institutions.

Equal treatment of users

No external users have access to the statistics and analyses before they are published and accessible simultaneously for all users on ssb.no at 8 am. Prior to this, a minimum of three months' advance notice is given in the Statistics Release Calendar.

See also Principles for equal treatment of users in releasing statistics and analyses.

Coherence with other statistics

The statistics of buildings gives an overview over the number of buildings in Norway, while the register based Dwelling stock gives figures on the number of dwelling units in these buildings. One building often contains two or more dwelling units.

Legal authority

The Statistics Act, section 3-2.

EEA reference




The statistics include all main buildings (no extensions) larger than 15 m 2 which have been started or completed and have not been reported demolished, burned or eliminated some other way. The observation unit is building.

Data sources and sampling

The statistics on the building stocks are based on data from the Ground Parcel, Address and Building Register (GAB). The owner of the register is the Ministry of Environment, with the Norwegian Mapping Authority professionally responsible. This register contains all buildings in Norway subsequent to the completion of the MABYGG project.

Complete census.

Collection of data, editing and estimations

Until 2005 Statistics Norway received Excel files from the Norwegian Mapping Authority, based on transcripts from the GAB. From 2006 the statistics is based on Statistics Norway own statistical version of the GAB-register, the Register of Ground Parcels, Addresses, Buildings and Dwellings (SN-GAB).

The number of buildings broken down by county and main groups of building types is compared with the year before. In the event of major changes from the year before the Norwegian Mapping Authority is contacted for explanation.

Totals are calculated by summation.

Seasonal adjustment




Comparability over time and space

More municipalities are cleaning up their registers. As a result, buildings that were not classified the previous year may have been assigned their correct building type the year after. A number of buildings that were incorrectly classified the previous year may have been assigned the correct building type code the next year. The number of registered buildings in the municipalities may also change from year to year because of the clean up.

From 2007 figures over the building types &“Detached houses used as holiday houses´´ and &“Farmhouses used as holiday houses´´ in the table containing holiday houses by county.

From 2008 Svalbard is included in the statistics. The figures only include the building stock in Longyearbyen, while other areas at Svalbard are not included in the statistics. This is because only buildings in Longyearbyen is registered in the GAB register.

Accuracy and reliability

Sources of error and uncertainty

There is a possibility that the municipalities make mistakes in registering data in the GAB register. The municipalities that do not put building cases online in the GAB register fill out a form that is sent to the county mapping office. In some cases the forms are filled in incorrectly. There are also some municipalities that for various reasons do not always follow the current registration rules for the GAB register. Buildings may be incorrectly classified, i.e. that a building has been assigned a different type of building in the register than it should have. The statistics can also include buildings that are torn down, burnt down or otherwise non-existing, if not reported to the municipality.