This building (B-796) does not exist on the best ortophoto I've found, see the ortophoto layer here: https://kort.nunagis.gl/portal/apps/webappviewer/index.html?id=aabf7e8375b74ed085c99add07241dfe&extent=-80178.0538%2C7779355.9022%2C-78886.1404%2C7779982.1774%2C32624
It does exist on the public administration map, though.
Maybe it has really been torn down?