Datasets · Geology
NADAG – ground investigations, linked to every property.
The National Database for Ground Investigations (NADAG), a central database of geotechnical investigations carried out in Norway. The points on the map show geotechnical boreholes. The amount of related information varies, depending on the format the data owner used to supply the data.
What the dataset contains
NADAG – ground investigations in Placepoint
The National Database for Ground Investigations (NADAG) collects completed geotechnical investigations in Norway. The points on the map are geotechnical boreholes. The amount of related information varies, depending on the format the data owner used to supply the data. Norges geologiske undersøkelse (NGU) runs and manages the database together with Statens vegvesen, Norges vassdrags- og energidirektorat (NVE) and Bane NOR.
For a developer, NADAG saves a lot of time in plot valuation. If geotechnical investigations have already been carried out in the area, you can often use them instead of ordering new drilling. This matters most in areas with quick clay, marine clay or uncertain loose masses. NGU does not try to correct errors in the datasets. The data owner is responsible for them. For new investigations, include a contract term that allows publication of the data in NADAG. Part of Placepoint's map layers for geology and risk. Related: Groundwater (GRANADA), Groundwater boreholes, Bedrock, Loose masses.
Continuously, depending on when data owners deliver data.
This text is based on the dataset documentation, synced 16 October 2026.
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About the datasetHow often is NADAG – ground investigations updated?
When the source changes. The frequency follows the source and is shown on the dataset in Placepoint.
Where does the data come from?
From Norges geologiske undersøkelse. We collect and quality-check the data and place it on the correct property, with source and date on every field.
How do I see NADAG – ground investigations on a property?
Look up the address in Fusion and turn on the Geology map layer. The dataset is there as its own layer, and the details appear in the property panel when you click on the map.
Can I get the dataset programmatically?
Yes. The same data is available in Placepoint API and in Placepoint AI through MCP, so you can bring it into your own systems and agents.
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