An £8m property in Belgravia inhabited by the son of a newly sanctioned Russian oligarch could be seized by the Government as part of the response to Vladimir Putin’s invasion of Ukraine.

Official records show the property is linked to Roman Rotenberg, a British citizen, whose father is Boris Rotenberg, who alongside his brother Arkady is one of Russia’s richest businessmen.

Their $4bn fortune is based on contracts with the state-owned energy giant Gazprom.

Roman Rotenberg is a vice-president of Gazprombank, the third largest bank in Russia. He was also recently named head coach of the ice hockey team SKA St Petersburg despite never having played or managed professionally.

The Telegraph can reveal that the Belgravia mews house was bought in 2007 for £3.3m and registered to a Cyprus company called Loktan Services.

Experts estimate that the property is now worth £8m. The beneficial ownership of Loktan Services could not be established.

Nobody was available for comment on Wednesday at the property, which appeared empty but secure. Wooden shutters were drawn across the windows at street level and on the two floors above.

A small camera was positioned in the top left corner of the doorway. The property was well-maintained but it appears the owners may not have visited in some time.

Roman Rotenberg takes a selfie with Vladimir Putin at ice hocket club SKA St Petersburg CREDIT: AFP via Getty Images

The Rotenbergs are confidantes of President Putin. Their relationship stems from their childhoods in St Petersburg where they trained together in the same Judo Club in the 1960s.

One of Arkady Rotenberg ‘s companies – Mostotrest OAO – won a lucrative state contract to build the infrastructure for the Sochi Olympic games.

A company co-owned by the brothers built several energy pipelines. Arkady Rotenberg strongly denies that his fortune is due to his close ties to President Putin.

Boris and Igor Rotenberg, the eldest son of Arkady, were two of the three figures included in Britain’s “first barrage” of sanctions this week. Boris Johnson said that “any assets they hold in the UK will be frozen”.

Roman Rotenberg was not included in the new UK sanctions. He was named in a US Treasury list of sanctioned individuals in 2015 and reportedly said he was “in shock and disappointed”, having done “everything following the guidance”.

The family’s friendship with President Putin resulted in Boris and Arkady Rotenberg being placed on US sanctions lists in 2014, as part of the American response to the Russian invasion of Crimea.

Boris Rotenberg is a Finnish citizen and was subject only to US sanctions. Arkady, who remains in Russia, was subject to both US and EU sanctions. As a result of those sanctions, property owned by the Rotenberg brothers in Italy was seized by the Italian government.

The Foreign Office did not comment.