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06 September 2021 | Story Leonie Bolleurs | Photo Mpendulo Myeni
Lucien le Grange, architect and urbanist, delivered the 32nd Sophia Gray Lecture this year. The online event was hosted in the Oliewenhuis Art Museum, where an exhibition of his work was also on display.

The Department of Architecture at the University of the Free State (UFS) presented the 32nd Sophia Gray Memorial lecture at the Oliewenhuis Art Museum on 26 August 2021.

The speaker at this year’s event – presented online – was Lucien le Grange of Lucien le Grange Architects and Urban Planners. Some of his work includes the Nelson Mandela Gateway to Robben Island, the Prestwich Street Memorial, and the architecture and urbanism of District Six. 

Le Grange was part of the staff of the Cape Town School of Architecture from 1978 to 2011, where he taught Design and History and Theory of Architecture at undergraduate and postgraduate level. Most of his work was also conducted in the Western Cape.

Purposeful thinking and purposeful action

He believes a time such as this, marked by so many environmental and public health challenges, demands of us purposeful thinking and purposeful action. “The recent social disruption in our country specifically requires honest reflection of the kind of social system we seek to create for ourselves as a nation.”

“We are at a crossroads that gives us an opportunity to seriously and honestly confront our shortcomings as a society. We need to find ways to restore confidence in ourselves and to fashion a new national urban development strategy,” he continues.

Le Grange is of the opinion that the social unrest in July is important for architects and urban designers to reflect upon. He elaborates: “In different ways, the sight of unrest stretching from Phoenix to Soweto shows that the apartheid city format remains very much intact. There has in fact been very little reconstruction and development. Our cities remain unsustainable, inequitable, and inefficient. These spaces are still conglomerations where there is no choice, no sense of place, no sense of safety, and no sense of security.”

For him as an architect and urbanist, the images of freeway landscapes summarise much of the shortcomings of our South African cities. He feels that it demonstrates a dependency on the private motor vehicle at the expense of safe and secure public transport. “It illustrates an environment full of physical barriers, which segregates communities in the isolated, monofunctional informal settlements that populate our urban landscapes,” he says. 

Le Grange is convinced that this condition – all over our nation’s towns and cities – is an inditement against our dysfunctional state. “It is astounding that 27 years since the birth of our democracy, the apartheid city planning model still prevails,” he says. 

Projects contributing to the social fabric

Much of the work he displayed during the lecture was done in the first decade after 1994. He says in the early years of our new democracy, the aspirations and ambitions of the RDP somehow influenced how our social services programmes were conceived and how they were delivered. The projects were executed in a manner that allowed greater social interpretation in terms of its design and execution. Facilities were expected to serve a broader social role, and its construction very often incorporated training and employment opportunities. 

“It was an exciting time, although short-lived.”

He grouped his work into three overlapping areas of concern – architecture and the city, architecture and history, and architecture and community – which have informed the understanding of various contextual challenges and inspired his design ideas. 

“These areas have assisted us to develop strategies that assist city building, urban design, engagement with user communities, the making of buildings, and the treatment and use of building materials,” he says. 

Talking about architecture and the city, he discussed the urban design for the old Klipfontein Road Corridor. The project consists of an activity corridor along 35 km of landscape and is envisioned as a space that will allow for various development opportunities. The project also aims to break down the barriers that divide much of the urban landscape in Cape Town and to populate it with nodes, coinciding with activity areas such as a stadium, schools, or shopping malls.

Le Grange’s portfolio also includes projects that investigate a revitalisation of destroyed and forgotten sites or landscapes in District Six.

As an urbanist, he investigates how cityscapes should perform to retain integrity and a kind of density that allows mixed-use development. He points out some of the opportunities that come with dense urban living, offered by structures such as major routes, punctuated with urban landmarks and streets. Multi-purpose in their function, he believes streets are social spaces where children can play and where communities can gather during a carnival or a protest. “It is also a place of finer intimacies, from which to be seen and into which one can look onto,” he adds. 

“One must also remember the existence of natural features; in this case the presence of Table Mountain that is like a mantle wrapped around Cape Town,” says Le Grange.

The declaration of the Group Areas Act in 1966 meant the end of this vibrant and highly liveable quarter in the city, and was followed by a period of destruction, implemented between the mid-1970s through to the 1990s.

Le Grange says there was, however, not a full removal. Places of worship and the schools were still occupied. When requested to develop a first-phase housing development for people to return to this area, it was around these particular social spaces that he worked. 

The first nine houses built for this project were privately funded by the developers and were constructed without any approval from the authorities. The occupants of these houses were the first claimants to be moved back to District Six after being forcibly removed by the apartheid regime. 

The Klipfontein and District Six projects are but two on the list of projects in which Le Grange – who believes all of humanity has a right to a life of dignity – was involved to better the lives of communities around him. 

Other projects he touched on during his lecture include the Genadendal Heritage, Conservation, and Restoration project, the Ocean View Community Hall, and the Hanover Park Market. 

View the complete lecture and access the virtual exhibition here. A live exhibition is also on display in the Oliewenhuis Art Museum. 

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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