According to http://news.sky.com/story/1409188/xbox-and-sony-cyberattacks-teen-arrested
A teenager has been arrested in Merseyside following cyberattacks on Sony PlayStation and Xbox systems last year.
The 18-year-old was held in Southport after a joint British and FBI-led operation on suspicion of unauthorised access to computer material.
He was also detained for alleged threats to kill, the South East Regional Organised Crime Unit (SEROCU) said.
Also on the SEROCU website http://www.serocu.org.uk/31/section.aspx/21/man_arrested_swatting_and_denial_of_service_offences
They list the street on Boundary Street, Southport
Here is a video from some UK news showing where the arrest was made.
From the video it looks like the camera is pointing either at house 120 or 118 Boundary Street, Southport according to google maps.
Keemstar said on twitter the teen arrested was https://twitter.com/GDKJordie
The name of the teenager has not been released yet. BTF is still on the run.