Three judges in the Court of Appeal ruled the trial Munir Farooqi of Manchester, given four life sentences in 2011 after his conviction for terrorist acts overseas, soliciting to murder and dissemination of terrorist publications was fair.
Trial evidence indicated his family's large Victorian house was used to hold meetings and radicalize recruits, the BBC reported Monday.
Following the conviction, Manchester police and Crown Prosecution Service announced they would seek to take the property since it was used for a terrorist purpose and had been "in the possession or control" of Farooqi at the time of the offenses.
The property forfeitures powers are a part of Britain's Terrorism Act 2000.
Farroqi's relatives, several of whom still live in the home, say they will fight the attempt at seizure, the BBC said.
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