"Under offer" typically indicates that a seller has accepted an offer from a prospective buyer, but the transaction has not yet been finalised through registration — meaning the deal is in progress but not yet legally complete.
This status generally signals to other prospective buyers that the property may soon be unavailable, though it is not always a guarantee, since offers can occasionally fall through before finalisation.
If a property of genuine interest is marked "under offer," it is reasonable to express continued interest in case the current offer does not proceed to completion.
