‘Doughnut’ office rents leap Amber Rolt12/10/2015 | Offices | South EastPrintDownload The latest CBRE Monthly index has recorded the highest rental growth since 2000 in the office sector within the outer London/M25 area, known as the “doughnut”. Office rents in the area grew 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