City of London的 URL :按此
呢度有講只要住在London的BNO港人有等同歐盟同本土英國人的投票權
Flowchart - can I register to vote(PDF) URL: 按此
以下是在BHK Forum睇到的資料source:
By Amadeus
Although it is not a new story, this is the first time I find a page (there is a referendum on mayor in Coventry) specifically indicating that Hong Kong citizen with BNO, BDTC or BOC passport can vote. (source: Coventry City Council)
登記做英國選民的表格
http://www.coventry.gov.uk/downloads/download/492/electoral_registration_form
什麼人合資格登記做選民
http://www.coventry.gov.uk/download/downloads/id/3741/eligible_nationalities
Hong Kong
Any previous resident of Hong Kong who holds a British Dependent Territories, British Nationals (Overseas), or British Overseas passport meets the nationality criteria for all elections in the UK.
Any previous resident of Hong Kong who only has a Chinese Special Administrative Region passport is Chinese and may not register.
source
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