Agricultural occupiers are farm workers who live in accommodation provided for them by their employer.
They may be protected either by the Housing Act 1988 (after January 1989) or the Rent (Agriculture) Act (before January 1989).
For protection under either Act to apply, a ‘qualifying worker’ must have worked in agriculture for 91 weeks out of the 104 immediately preceding weeks. Agriculture is defined as:
Dairy farming and the keeping and breeding of livestock
The production of any consumable produce that is grown for sale or for consumption (eg crops, market gardening and fruit growing)
The use of land as grazing, meadow or pasture land, or for use as an orchard
Forestry
Extensive guidance on agricultural occupancy can be found here.