Norman Foster resigned from the House of Lords last week. A life peer since 1999, he will retain his title, Lord Foster, but will no longer be able to attend the House of Lords, nor vote there.
Foster's resignation was prompted by a new law banning peers and MPs who are non-resident in the UK, and who decline to pay British tax on incomes earned outside the UK. A spokeswoman for Foster and Partners said: "Lord Foster left the UK several years ago to live with his family in Switzerland. This is common knowledge and he has accordingly declared the fact."