Unfortunately not. The Plum Guide only lists entire properties.
We classify an entire property as a rental property (studio, apartment, maisonette, house, boat, castle, treehouse, igloo etc.) that you have entirely to yourself for the duration of your booking. You are not permitted to share the hosts property with anyone who is not a member of your party.
We do not list private rooms, spare bedrooms or cupboards under the stairs. Even if they are beautiful cupboards under the stairs.