The GAB register

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The GAB register

• Gotfred Rygh
• Senior Advisor
• Norway Mapping Authority

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Norway in brief

• 324.000 sq. Km
• 4.5 million inhabitants
• Three levels of public administration
• 1 state
• 19 Counties
• 435 Municipalities
• 87 local courts

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GAB basic facts.

• Administered by Norwegian Mapping Authority
• Establishment started 1978
• Legal basis Law on Land Subdivision and by-laws
• Ground Parcel
• Addresses
• Buildings

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The GAB register - Terms of reference

• Common registers for many users
• Centralised database
• Few but important data
• Updating routines supported by law
• Focusing on data quality and standardisation
• Focusing on completeness
• Cost recovery - user fees

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The GAB register - Some success criteria

• Being built up by a step-by-step approach
• Co-operation between various public agencies, and
  between public and private sector in general

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The GAB system - Data content

• Ground Parcel
• Kind of property
• Owner
• Owners address Date of purchase
• Market value - referring to the last transfer
• Co-ordinates of one point of representation
• Area
• Land use
• References to buildings and addresses

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The GAB system - Data content

• Addresses
• Co-ordinates
• References to
• School district
• Constituency
• Postal Zone
• Basic statistical unit
• References to corresponding building and
  addresses

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The Address identifier

• Two types of addresses
• Road address (Karl Johans gt. No
  25)(0201/1204/25)Mainly in urban and densely
  populated areas.
• Addresses identified by the parcel
  id.(0623/78/11)Most frequently in rural areas
• For both kinds of addressesApartment addresses
  in multi-apartment buildings

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The GAB system - Data Content

• Buildings
• Kind of Building
• Area
• Number of floors
• Kind of water supply
• Kind of sewer treatment
• Dates of application for building permit, start
  of construction and finalising the building.
• Number of flats and data about each flat
• Co-ordinates
• References to corresponding addresses and ground
  parcels

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The GAB system, Updating routines

• Compulsory
• From Municipalities
• Land subdivisions
• Building activity
• New and changed addresses
• From Local courts
• Change of ownership
• By agreement or on commercial conditions
• From The Norwegian Population register
• Resident address of the owner
• From The Norwegian Enterprise Register
• Location address of the enterprise
• The Central Post Register
• Changes in postal code

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GAB-related costs (2002)

• Wages employee in NMA 8,5 mill NOK
• Costs comp. Company (IBM) 12 mill NOK
• Link to Population Register 750.000 NOK
• Income from the municipalities 8 mill NOK

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Various kinds of statistics

• The state of art
• Census
• What is the housing situation in five selected
  municipalities on February 1th 2003?
• The changes over time
• How many houses have been built in the same
  municipalities the last 5 years.
• What kind of houses were built in the same period
• Migration. How many people/households have
  migrated from rural to urban areas the last 5
  years in three selected counties or municipalities

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Of vital importance is

• The updating routines
• Data maintenance supported by law
• Law on Land Subdivision
• The building act
• The maintenance routines must not be felt too
  tiresome for the municipalities
• Thus, the maintenance routines must be integrated
  with the internal ordinary routines in the
  municipalities
• The output of the system must be useful for the
  municipalities

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Of vital importance is National standards for
data representation

• National standard for identifying the various
  objects
• Ground parcel
• Building
• Address
• Standard for building categorisation
• Definition of a building
• Definition of a single family home, of leisure
  home, etc.
• Standard for measurement of the areas of the
  buildings
• Outside measurement?
• Inside measurement?
• Should all rooms be included in the area of the
  building? ( Cellar, storing houses, rooms with
  limited heights??
• Other standards

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Of vital importance is

• It must be possible to produce statistics on all
  kinds of jurisdictions
• Country
• County
• Municipality
• Suburbs (Parts of cities)
• Basic statistical unit
• School district,
• Constituency
• Parish
• Within freely selected polygons (co-ordinates!)

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Statistics of property transactions

• The origin of the data Land register
• Kind of transaction
• Free sale
• Inheritance
• Expropriation
• Kind of property
• Dwelling/leasure home/farm/institution/business/et
  c.
• Price
• Estimated value (if price seem very low)

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Statistics of building activity

• Purposes
• Macro economic indicator,
• Municipal planning,
• Building industry/ Construction Companies
• The origin of the data The municipalities
• Follow the progress of the building
• The time is important
• The time of the application
• The time the physical building activity starts
• The time of finalising the building

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Census - Characteristics

• Produce Statistics on people and households
• Age
• Sex
• Family structure
• Locate people
• Country
• Municipality
• Part of municipality
• Address unit
• Co-ordinate
• State of the dwelling
• Size
• Water/heating/age/floor/lift
• Others

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The two registers involved.
Pop.Register
GAB

• The population of Norway
• Address,
• Personal id, name, sex,
• Household info

• Tecnical data
• Address
• Coordiantes,
• Building info,
• owner, etc.