Oppmålingsforretning (cadastral survey)
An oppmålingsforretning is the official process in which the boundaries of a property are clarified, surveyed and marked on the ground, and then entered in matrikkelen (the Norwegian cadastre). It is the cadastral survey that gives a new or changed property its own matrikkelnummer with boundaries fixed by coordinates. Without a completed survey, the property does not exist as an independent unit in the public register.
The survey is required for subdivision of a new plot, for land transfer between properties, for boundary adjustment, when creating a construction property, and when unclear boundaries need to be clarified. The process has its legal basis in matrikkellova section 33. Under matrikkellova section 35, the kommune appoints a surveyor for each survey. In many kommuner the kommune does this itself, but the task can also be carried out by private surveyors where the kommune has allowed it. The order is usually as follows: the kommune first grants permission for subdivision under the Planning and Building Act, then the cadastral survey is held, and finally the new unit is entered in the matrikkel and registered in Grunnboken.
In the survey itself, the parties (the owner and the neighbours) are notified and summoned. The surveyor walks the boundaries on site, surveys the boundary points with coordinates, places official boundary markers and writes a protocol. Afterwards, the parties are sent a matrikkelbrev (cadastral certificate) documenting the new boundaries. The fee follows the kommune's cost recovery principle and is set in the kommune's fee schedule, often graded by area. It can range from a few thousand to tens of thousands of kroner depending on the kommune and the plot size.
It is useful to distinguish the cadastral survey from neighbouring terms. Subdivision is the planning-level division of a property; the cadastral survey is the technical and legal clarification of the boundaries that completes the division. Sectioning, by contrast, divides a building into owner sections and normally does not require a cadastral survey for the individual internal floor area, but it may require one for an outdoor supplementary part (outdoor area that forms part of a section). For a developer, progress in the survey is often critical: the sale of a subdivided plot cannot be registered in Grunnboken in the new owner's name until the new matrikkelenhet has been created, and processing times vary a great deal between kommuner.
How the dataset appears in the map
The dataset is part of the map layer Property as Cadastre – Property Map:
From Placepoint's dictionary: Oppmålingsforretning
More information: Lovdata: matrikkellova section 33, Kartverket: property
English: Cadastral survey (Norwegian matrikkel boundary survey).
Frequently asked questions
What is an oppmålingsforretning?
It is the official process in which a property's boundaries are clarified, surveyed with coordinates, marked on the ground and entered in matrikkelen. It gives a new or changed property its own matrikkelnummer.
When is a cadastral survey needed?
For subdivision of a new plot, land transfer, boundary adjustment, creation of a construction property, and when unclear boundaries need to be clarified. It is carried out under matrikkellova section 33 and section 35, usually by the kommune's surveyor.
What is the difference between subdivision and a cadastral survey?
Subdivision is the planning-level division of the property under the Planning and Building Act. The cadastral survey is the technical and legal clarification of the boundaries that completes the division and creates the new matrikkelenhet.
What does a cadastral survey cost?
The fee follows the kommune's cost recovery principle and is set in the fee schedule, often graded by the area of the plot. It can vary from a few thousand to tens of thousands of kroner between kommuner. Processing times also vary considerably.