When I was looking to move down to the central belt I looked at aplace with 2 and half acres - it was called Candie Croft - near Avonbridge
It's just a name, except in the Highlands. It doesn't imply anything other than being more than a house with a garden. Our place in Old Rayne, Aberdeenshire was known to all the neighbours as a croft, but it was originally part of a larger unit known as Bonnyton Croft