LONDON (Thomson Financial) - Derwent London PLC said it has secured planning permission from the City of London for redevelopment of three multi-let buildings in Chancery Lane totaling 71,146 square feet. TFN.newsdesk@thomson.com man/wj COPYRIGHT Copyright Thomson Financial News Limited 2007. All rights reserved. The copying, republication or redistribution of Thomson Financial News Content, including by framing or similar means, is expressly prohibited without the prior written consent of Thomson Financial News.