Such buildings and structures are known as ‘curtilage’ listed and can include outbuildings, walls, gates and gate piers, ice houses and pig sties etc.
Mae adeiladau a strwythurau o'r fath yn cael eu galw'n 'gwrtil' a gallant gynnwys adeiladau allanol, waliau, gatiau a phileri gatiau, cytiau rhew a thylciau moch ac ati.