UK: Homes with word 'Warren' in address the most expensive

Widely reported, in The Times on 27 January, and elsewhere in the media:

From Zoopla (Annabel Dixon) - 'What’s in a street name? Homes on a ‘Warren’ over £400k more expensive than those on a ‘Street’ -  “What’s in a name?” Juliet breathlessly pondered in Shakespeare’s famous tale of “star-cross'd” lovers, Romeo and Juliet. Well, when it comes to property, quite a bit actually. New research by Zoopla has revealed that the highest value properties in the UK are located on a ‘Warren’, where they command an average £607,267. That’s a cool £422,545 more expensive than homes on a common ‘Street’, where typical house prices stand at £184,722.

From MailOnline -  'Property website Zoopla's analysis of the most common street names in the UK found that a home in a road with Warren in its title is typically worth £607,267 - more than double the national average of £282,978'.

BT article

Absurd if it's true.