Melinda Silverman is an urban designer and urban policy specialist. She was recently part of a team devising a strategy to address 'bad buildings' in Johannesburg's inner city for the City of Johannesburg, and is currently providing specialist input, in association with the Centre for Sustainability in Mining and Industry, at WITS University, to identify optimal settlement patterns for sustainable development of the Waterberg coalfields. In 2009, Silverman co-authored a 'Quick Guide of Low-Income Housing in Africa' for UN-Habitat and was editor-in-chief of the South African Cities Network State of the Cities Report 2006. Silverman's dissertation for a Master's degree in Urban Design explored the increasing importance of the urban periphery in the Johannesburg metropolitan system.
Tanya Zack is a town/development planner, and holds a PhD in Town and Regional Planning from WITS University. In 2010 she co-authored a toolkit for Community Residential Units for the Social Housing Foundation, and during 2008 and 2009 acted as Executive Manager: Planning and Strategy at the Johannesburg Development Agency. Zack also develops practical strategies for the selection, implementation and management of informal housing delivery projects, and liaises with civic associations and other community interest groups on behalf of private developers seeking to undertake such projects. She has co-authored 'The Citizens' Guide to Planning in Johannesburg' and project-managed the urban component of the Second Economy Project, an initiative of South Africa's Presidency.