A picture of President Jacob Zuma's private residence in Nkandla, some 178 kilometres north of Durban, on November 4, 2012.The Democratic Alliance (DA) leader Hellen Zille was prevented from inspecting roads around the property and attempt to enter President Zuma's compound.Zuma's private home will reportedly feature underground bunkers,a clinic,a fire station,a special quarter for police and a helipad.The estimated costs for the current upgrade is set to cost 30 million US dollars.The DA has called for an investigations to the funding and upgrading of the Zuma's residence.