Devonshire Square on the block for £550m Mike Cobb22/08/2015 | Offices | City fringePrintDownload Blackstone is set to put its sprawling Devonshire Square estate up for sale for £550m. A sale at the asking price would realise a 66% return on 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