Eiendomssjekk is a Norwegian property information service from Westnes Eiendom AS, bringing together official property data and housing-market information in one place. Users can search by address, cadastral number, organisation number or Finn listing link, and the service is free to use. Property pages provide registered sale prices and dates, ownership history, building and unit details, and links to active or historic Finn listings where available.

Users can also explore cadastral maps and plot boundaries, nearby sales and price statistics, and 3D visualisations of sunlight conditions. The site offers housing-price and rental-market information, including estimates based on comparable local listings, as well as energy certificate details from Enova where available. Additional tools include market listings and sales overviews, municipality-level price information, local favourites and side-by-side comparisons of up to four properties.

Eiendomssjekk says its information is drawn from sources including Kartverket, Statistics Norway (SSB), Enova and open housing advertisements. Its aim is to make property records and relevant market details easier to explore without searching multiple registers