Vinterhus. I'm not a native though, so don't take that as gospel.
Wenderholm.
The Swedish word for home is "hem"
Winter home would be a place to return for the winter I'd reckon. Translated, it is "vinterhem".
Winter is called "Vinter" in Swedish, pretty similar :)
wenderholm
Vinter
Vinter
The same way as they do in spring summer or autum
tomtars
Tomtars
äldreboende
Viggo Mortensen