GAB-registeret
GAB-registeret was Norway's first national electronic property register, in use from 1980 until the late 2000s, and the forerunner of today's matrikkel. The name is an acronym for the three parts the register consisted of: grunneiendom (land property), adresse (address) and bygning (building).
The G part held information about each land property: the property identifier (gårdsnummer and bruksnummer), area, ownership and which property it had been separated from through subdivision, if any. The A part was the official address register with street addresses, address codes and coordinates. The B part recorded all buildings with area, year of construction, building type and a coordinate-based location. The three parts were linked with pointers, so an address could be connected to both a property and a building in the same lookup.
The register had its legal basis in delingsloven (the Subdivision Act, Act no. 70 of 23/06/1978 on mapping, subdivision and registration of land property) and was built on the report NOU 1975:66. Statens kartverk (the Norwegian Mapping Authority) was the central register authority, while the kommunes maintained the information on an ongoing basis: the municipal surveying authority was responsible for the land property and address parts, and the building authority for the building part. Record keeping was governed by a separate regulation on the GAB register.
GAB-registeret was replaced by the matrikkel, the country's official property register today. The transition took place gradually from December 2007 to April 2009, when the register information from GAB was merged with map data from Digitalt eiendomskart (DEK, the digital cadastral map) into a single register. At the same time, the legal basis moved from delingsloven to matrikkellova (Act no. 101 of 17/06/2005), which came into force on 01/01/2010. The matrikkel is the official property and address register and is distributed as open data through the Norge digitalt collaboration.
For property analysis today, GAB-registeret matters mainly as historical background to the data. Older information in the matrikkel, in particular year of construction and building data, often comes from the original GAB registration and can reflect how the register was maintained in the 1980s and 1990s. That explains why some buildings have a recorded year of construction that is a registration year rather than an actual year of completion.
In Placepoint you do not meet GAB-registeret directly, but the matrikkel information shown in the property panel and the building panel are descendants of the GAB data. When a year of construction looks unexpected, the explanation is often that the value goes back to an old GAB registration.
How it looks in Placepoint
In Placepoint you find this in Property panel:
From Placepoint's dictionary: GAB-registeret
More information: Store norske leksikon: GAB-registeret, Kartverket: En moderne matrikkel, Lovdata: Forskrift om føring av GAB-registeret (1987), Lovdata: Matrikkellova, Wikipedia: GAB-registeret
English: The GAB Register, Norway's former Property, Address and Building register (Norwegian-specific).
Frequently asked questions
What does the abbreviation GAB mean?
GAB stands for grunneiendom, adresse and bygning, the three parts the register consisted of. The G part recorded the land properties, the A part the official addresses and the B part the buildings with area, year of construction and building type.
When was GAB-registeret replaced by the matrikkel?
The transition took place gradually from December 2007 to April 2009, when the GAB information was merged with Digitalt eiendomskart into the matrikkel. Matrikkellova came into force on 01/01/2010 and replaced delingsloven as the legal basis.
Why do some buildings have an odd year of construction?
Older years of construction in the matrikkel often come from the original GAB registration. For buildings that were completed before the register was set up, the recorded value may be a registration year from the 1980s rather than the actual year of completion.
Who was responsible for GAB-registeret?
Statens kartverk was the central register authority, while the kommunes maintained the information on an ongoing basis. The municipal surveying authority was responsible for the land property and address parts, and the building authority for the building part. The same division of work applies today for the matrikkel.