BKLM242100 | Relevant entities and groups: banking groups: conditions to be met to be a banking group: Condition A
From HM Revenue & Customs · Bank Levy Manual
Paragraph 12(2) of Schedule 19 - Condition A
This is met where the ultimate group parent is a 'UK resident bank' (See BKLM243000) or a 'relevant foreign bank' (See BKLM245000).