Terms of service
Last updated 26 August 2026
What Tupendan is
Tupendan collects publicly listed auction lots from Nordic auction houses and presents them in one place, together with our own analysis. We are not an auction house and not a marketplace: all bidding, buying, payment, and delivery happen directly with the auction house, under their terms. We are never a party to a transaction.
Lot data
Lot information is collected automatically and can be delayed, incomplete, or occasionally wrong. The auction house’s own lot page is always authoritative — check it before bidding. Lot descriptions and photographs belong to the auction houses and their sellers and are shown with attribution; houses can contact us about how their material is presented.
Estimates and total prices
Tupendan’s estimates are statistical indications computed from comparable sold results. They are not professional appraisals, valuation certificates, or investment advice, and we make no guarantee that any lot will sell within an estimate. Total prices are calculated from the fee schedules the houses publish and can differ from the final invoice — the house’s own terms decide.
Your account
Accounts are personal and free. Don’t abuse the service — scraping, resale of our data, or attempts to disrupt the service may lead to suspension. You can delete your account, and everything saved in it, at any time under Settings.
Liability and changes
The service is provided “as is”, without warranties. To the extent permitted by law, we are not liable for decisions made based on the information shown here. We may update these terms; the date above tells you when they last changed. Swedish law applies.