（房子）已有人出价的，在洽售中的
If a house is under offer, someone has already suggested a particular price at which they would be willing to buy it.
Two of the houses had already sold and a third was under offer.
We were told the property was under offer and no longer on the market.
They had earlier confirmed that the office space was under offer.
The centre is believed to have gone under offer to a private individual.
Both units are now under offer.
See also: offer noun