Yes, the provision for a tenant to use their croft for a purposeful use, other than cultivation, was introduced by the Crofting Reform (Scotland) Act 2007. A tenant must apply to the landlord for written consent before putting the croft to such purposeful use. If the landlord does not consent or applies conditions which the tenant feels are unreasonable, the tenant can apply to the Crofting Commission for consent to the proposed use. The croft should not be put to the proposed purposeful use until consent is either obtained from the landlord or (failing that) from the Crofting Commission.