My advice - change the place. It is a building site all around it, the building is not complete itself, In this weather it will be mud river in the day and icescating in the night.
I got the same letter. We're not flying out till 14th though and they said it could be complete by then so told me to call again next week. They said the only work that's being done is paiting etc so there's no heavy machinery or anything. Not too bothered about the building work tough as will hopefully be on the slopes all day. Was looking forward to a swim and the jacuzzi of a night though. They didn't give me any other options when I called.