English and Welsh definition
"domestic premises" means premises occupied as a private dwelling (including any garden, yard, garage, outhouse, or other appurtenance of such premises which is
not used in common by the occupants of more than one such dwelling);
Scottish definition
“domestic premises” means premises occupied as a private dwelling (including
a stair, passage, garden, yard, garage, outhouse or other appurtenance of such premises which is used in common by the occupants of more than one such dwelling);
In Scotland does this means if “any a stair, passage, garden, yard, garage, outhouse, or other appurtenance of such premises” is not used in common by the occupants of more than one such dwelling then it’s not a domestic premises? If this is the case then single family home is a relevant premises and subject to the F(S)A 2005.
Check out
http://www.opsi.gov.uk/legislation/scotland/acts2005/asp_20050005_en_6 section 78 for more details.