A local company has been erecting a marquee tent at the singer’s home, where a van from a party and decoration company has also been spotted. The wedding is widely believed to be this coming Sunday.
McCartney, 69, and Shevell, 51 – who were engaged in May – returned to London earlier this week after attending his daughter Stella’s fashion show in Paris on Monday.
The pair sat close together in the front row where "they looked like two lovebirds," according to an observer.
Reporting by SIMON PERRY and MONIQUE JESSEN