Ian Fleming is Not buried in Sevenhampton Gloucestershire.

Ian Fleming, author of the James Bond books is buried at St. James’ Church, Sevenhampton, Wiltshire.  That Sevenhampton is a hamlet situated near Highworth, Swindon, Wiltshire.
He is NOT buried in the Sevenhampton which is covered by this website, which is near Cheltenham, Gloucestershire.

The location of St James, Sevenhampton, Wiltshire is shown in this map.