The schemes totalling 90 new homes were awarded through the iESE SEaL (South East and London) framework.
Subject to planning permission, construction work on the new housing is expected to start in spring 2014 with completion scheduled for early 2016.
All homes will meet Level 4 of the Code for Sustainable Homes, making them 44% more energy efficient than properties built to current Building Regulations.
Councillor Fiona Colley, Southwark Council cabinet member for regeneration and planning, said: “ I am pleased that contractors have been appointed for these sites and we can now press ahead with our plans to create 11,000 brand-new homes over the next 30 years for people in Southwark.”
To find out more about the framework please visit: www.iese.org.uk/local-framework-small-projects