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Retain or Rebuild: Different Pathways of Redevelopment in Urbanising Chinese Villages
(Lodz University of Technology Press, 2023) Utzig Lukas; Vaughan Laura; Misselwitz Philipp
While the ongoing rapid urbanisation in China transforms farmland into urban areas, old villages receive a certain level of protection from being completely rebuilt. This is due to the grassroots ownership of rural land, which is held by village collectives. The village becomes surrounded by the city, called chengzhongcun. During this intense transformation from an agricultural to a landless way of life, the village collectives redevelop their dense settlement in very different ways to create resilience and benefit from the opportunities that urbanisation brings. This research is examining four old villages in the Huangyan-Taizhou region during their redevelopment. It will be analysed how different stakeholder decisions create variations in their urban form and how this influences their economic resilience. Employing methods from the space syntax framework coupled with land use mapping and interviews, this research builds on Hillier’s concept of the movement economy. Hillier finds that urban form generates movement, which then becomes the precursor for street-based economic activities such as retail and services. This relates to Vaughan’s and Hall’s work on ethnic marketplaces which identifies informal economic networks as key social safety nets of low-income and migrant neighbourhoods. The findings suggest that villages that have seen bottom-up incremental changes and retained their organic street network generate higher movement than rebuilt villages and thus are able to shift their economies towards the service sector. Their building stock is also more adaptable to ground-floor subdivisions and retail use, while redeveloped villages often have set-back buildings with residential ground floors that cannot facilitate informal use or retail space. Since the former farmland surrounding the villages is developed into industrial land, the villages are the only possible site for restaurants, shops and other amenities, creating many opportunities for villagers. They can be however only realised with specific pathways of redevelopment.
Urban segregation of London social housing estates: Measuring access to the city and the question of regeneration
(Lodz University of Technology Press, 2023) Utzig Lukas; Karimi Kayvan
While London is currently experiencing an acute shortage in affordable housing, local authorities are selling existing council estates for private redevelopment. This practice is often explained with the notion of failure of certain buildings, such as the Robin Hood gardens estate which went on to be partly demolished in 2017. At the same time increasing evidence has been gathered, which shows that social, walkable streets and neighbourhood amenities are especially important to economically vulnerable groups as they provide the basis for local communities that act as social support networks through childcare, informal employment, or housing. However, it is often these groups that are most affected by segregation through the urban form of the neighbourhood and limited access to the wider city. Research into segregated communities by Legeby, among others, suggests that a simple regeneration of the buildings themselves does not tackle the underlying problem of social urban resource distribution. This research will investigate the relation of urban form to the potential of pedestrian activity and distribution of neighbourhood resources for four high-rise council housing estates in London. An innovative workflow combines space syntax measures with Gravity accessibility, including the access to amenities such as shops and restaurants via the street network. The findings suggest that access to the resources the city provides, including access to urban co-presence, is very unequally distributed between the four case studies. It is also shown to what degree some urban form is creating obstacles and how it can be measured and compared. Improving opportunities through urban form in the neighbourhood may be an alternative to demolition of the buildings. Quantifying these inequalities offers a more nuanced debate about social housing redevelopment and a pathway for sustainable improvement.