These are the most festive street and house names across the UK THE most festive street and house names aross the country have been revealed. Royal Mail research has revealed that seven per cent (more than 23,000) of the nation s named homes sport a Christmas-related name. While analysis of its Postcode Address File reveals that more than 50,000 UK streets bear a name relating to the festive season. King Street is the most popular festive-linked street name in the UK, alongside ‘Ivy Cottage’ for houses. There are also more 7,600 addresses in the country bearing the term ‘Holly. Aside from London, York is officially the UK’s most festive city, with 480 Christmas-related named addresses.