The Green party leader, Zack Polanski , has admitted he may have failed to pay the correct council tax while living on a London houseboat. Polanski had faced mounting questions over whether the houseboat, moored in east London, was his primary residence. A Green party spokesperson described the situation as an “unintentional mistake” and said Polanski had “immediately taken steps” to pay any tax owed. The spokesperson said: “Until relatively recently, Zack was living on a houseboat, which came with its own unique practical circumstances and considerations. He has immediately taken steps to pay any council tax he may be found to owe. Zack apologises sincerely for the unintentional mistake.” The Green party previously told the Times newspaper that Polanski rented a room at another address where council tax was included in the rent and stayed on the boat only “occasionally”. Government guidance states that a person may be liable for council tax on a boat if it is their “sole or main” residence.…