High flyers Simon Jack09/10/2004PrintDownload Recovery Gloom over the world's most expensive industrial area is lifting, and the location is ripe for development. By Simon Jack A sense of gloom has hung over Heathrow for some years, but many believe that the world's most expensive Thank you for reading EG Want to read more? Enjoy a story a week for FREE. Register Find Out More Already a subscriber or registered user? Sign in