The super-regional shopping centre's iconic expansion and refurbishment project – which involves interior refurbishments and the total of 30,000sqm of new retail space - is set to further fortify the centre's standing as one of Africa's leading retail icons.

"The completion of the innovative steel roof structure clearly indicates the rapid pace of the project, and has caused much excitement as the vision to reposition Sandton City unfolds into this incredible structure," says Julie Hillary, General Manager Sandton Region, for Liberty Properties. "Within nine months the development will be complete and will bring with it an added realm of unparalleled shopping variety."

The 40 metre diameter steel roof structure – comprising 250 tonnes of steelwork– mimics the profile of a protea flower and will be clad with innovative energy efficient material in the next few months.

The design comprises twelve bifurcated columns which support twelve curved trusses that span from the columns to a central core. This core is placed towards the back of the atrium so the trusses vary in length, with the longest spanning 17 metres. The core also provides the enclosure for two lifts.

The creation of the steel roof structure commenced in November last year, and with the dedication of the contractors who worked through the traditional 'builders break' and battled against severe weather conditions, the structure was completed at the end of January 2011.

Extensive leasing deals are being confirmed and secured with leading national and international brands. The new extension will provide space for national flagship stores and the remaining spaces are reserved for exciting international fashion retailers.

"Sandton City's entire retail space, including the extension, will total 143,690sqm on completion of this phase. This will take the complex, which includes the hotel and office component, to a massive 215,000sqm," notes Hillary. "Currently the Fountain Court in the existing centre is under refurbishment and the Mugg & Bean court is set to commence in mid 2011."

The R1.77 billion first phase of the Sandton City redevelopment, undertaken by Liberty Properties on behalf of the properties owners Liberty Group 75% and Pareto Ltd (25%), serves to expand and improve the centre to enhance its leading position in the retail sector and to meet the ever-growing needs of its market.