If you are looking at getting or building a croft house is it cannot be used as a holiday home and you should be fully resident there and the Crofting Commission require..
What are the duties of a crofter?
A duty to be a resident on, or within 32 kilometres of, their croft
A duty not to neglect their croft
A duty to cultivate and maintain their croft or to put it to another purposeful (and approved) use