13 conferenceNegotiating social housing needs: How to minimise the cost of meeting Section 106 affordable housing obligations. Hatton Garden, London EC1. Contact Sarah Scott on 020 7428 7828 or ss@bellwetherforums.com 18 concrete centre seminarModern concrete methods of domestic construction. Series of seminars on concrete performance and efficiency: Nov 18 (Excel centre, London); also Nov 19 Leigh Court, Bristol. Contact Rosemary …