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This study aims to measure the occurrence of gentrification and to relate gentrification with housing values.

The authors have used Getis-Ord statistics to identify and quantify gentrification in different residential areas in a case study of Stockholm, Sweden. Gentrification will be measured in two dimensions, namely, income and population. In step two, this measure is included in a traditional hedonic pricing model where the intention is to explain future housing prices.

The results indicate that the parameter estimate is statistically significant, suggesting that gentrification contributes to higher housing values in gentrified areas and near gentrified neighbourhoods. This latter possible spillover effect of house prices due to gentrification by income and population was similar in both the hedonic price and treatment effect models. According to the hedonic price model, proximity to the gentrified area increases housing value by around 6%–8%. The spillover effect on price distribution seems to be consistent and stable in gentrified areas.

A few studies estimate the effect of gentrification on property values. Those studies focussed on analysing the impacts of gentrification in higher rents and increasing house prices within the gentrifying areas, not gentrification on property prices in neighbouring areas. Hence, one of the paper’s contributions is to bridge the gap in previous studies by measuring gentrification’s impact on neighbouring housing prices.

Cryptomarkets have expanded rapidly since the launch of Silk Road in 2011, offering a significant new mode for the sale and distribution of illicit drugs. One of the key questions accompanying the proliferation of cryptomarkets and online drug distribution concerns how these unique online fora alter relationships between drug suppliers and their customers. Existing research points to an increase in perceptions of safety and respect among people who use cryptomarkets to purchase drugs relative to other ‘offline’ modes of drug acquisition. There is a growing body of evidence that suggests that drug suppliers are also attracted to cryptomarkets by perceptions of increased safety, as well as by market norms and institutional processes that are characterised by respect and courteous engagement. These issues fall broadly under what has been termed market ‘gentrification’ – that is, the substitution of offline drug market norms, which are sometimes characterised by violence, intimidation, suspicion, and exploitation, with relative feelings of safety, respect, and courtesy. This chapter explores the ‘gentrification hypothesis’ and examines how the unique structural characteristics of cryptomarkets, which include user feedback and ratings, dispute resolution systems, and administrator and community ‘policing’ of cryptomarkets, as well as online discussion forums, assist in fostering the development of pro-social norms that appear to be prevalent on cryptomarkets.

Cuenca, a World Heritage City, faces urban expansion as residents move to the outskirts, leaving the historic center abandoned and deteriorating. The challenge now is to relocate these spaces into sustainable and cohesive nodes. This research aims to identify cultural facility oversupply in the city center and understand the required usage for heritage buildings to promote a habitable, sustainable and cohesive historic center.

The study consisted of two phases. Firstly, a georeferenced spatial analysis and monthly usage frequency of each facility is proposed. Secondly, interviews explored the criteria for designating heritage buildings as cultural facilities. Additionally, a survey assessed urban habitability in three historic center parishes, measuring aspects like coverage, satisfaction and security from residents' perspectives.

The underutilization of cultural facilities demonstrates both inefficient heritage management and a lack of resident interest in cultural activities and neighborhood decision-making. Thus, ensuring collective ownership of heritage assets becomes crucial. Additionally, the municipality's approach to heritage must be reconsidered. While implementing a cultural program may seem faster and cheaper, the long-term cost-benefit of maintaining a cohesive historical center outweighs that of a dispersed city.

This paper calls for a fundamental reimagining of the concept of built heritage, emphasizing the need for a more inclusive and integrated approach that goes beyond museum and tourism-driven strategies. This perspective recognizes the importance of social, cultural and environmental sustainability in revitalizing the historic center, considering the broader context of the city and its diverse inhabitants.

This paper aims to address socio-spatial challenges facing the sustainable regeneration of the 19th-century historic covered Attaba market. One of the few remaining historic market buildings in Cairo. Understanding these challenges is crucial as there is a pressing need for these buildings to be included in the national heritage regeneration policies that would foster their role as sustainable socio-economic urban nuclei within the city center.

The paper detects the socio-spatial transformation of the Attaba market through the comparison of archival material. This is supported by observations on the current socio-spatial aspects of the market including forms of interactions, conflicts and interventions of various user groups. A number of 30 semi-structured interviews with traders of the Attaba market were conducted inside the market, along with in-depth observations carried out between 2016 and 2018. Finally, information about local policies toward the market is obtained through interviews with local officials currently managing the market, namely, the Egyptian Endowment Authority and Cairo Governorate.

The findings reveal a lack of clear regeneration policy and a complete absence of public participation in decision-making. These factors erode the crucial role these markets play in revitalizing the city’s socio-economic strength and threaten their tangible and intangible values.

The paper focuses on one of the understudied building types that, however, represent key opportunities for the sustainable development of their contexts. The paper proposes a framework that can be applied to regenerate the Attaba market and its surroundings. When tested, the framework can be also adjusted and applied to the other historic covered markets in Cairo.

This paper aims to compare and review alternative ways to adjust public ground leases.

Based on principles derived from a review of scientific literature, alternatives for the extension of leases are discussed based on the case of Amsterdam.

Many alternatives lead public ground-lease systems to produce results that are the opposite of what they are intended to be (as inspired by Henry George): new improvements result in higher rent, but additional location values do not result in higher rent. One exception is the lease-adjustment-at-property-transaction alternative, which may nevertheless result in fewer transactions.

Public leasehold systems are highly contested with regard to the extension of leases. Such systems are often aimed at capturing land-value gains. In practice, however, this tends to be more difficult than expected. Value capture by authorities, as intended by the system, results in counter-movements of lessees, who often gain public support to set lower leases. These political processes may even result in the termination of such public ground-lease systems. This paper reports on a search for possible solutions.

The comparison of various alternatives to ground-lease extension based on principles derived from literature is new, and it contributes insight into public ground-lease systems.

The “unplannable” is a welcomed exception to the formal order of urban planning. This opinion article explores some examples of informal urbanism and discusses its ambiguous relationship to public space and unplanned activities in the city. The informal sector offers important lessons about the adaptive use of space and its social role. The article examines the ways specific groups appropriate informal spaces and how this can add to a city’s entrepreneurship and success. The characteristics of informal, interstitial spaces within the contemporary city, and the numerous creative ways in which these temporarily used spaces are appropriated, challenge the prevalent critical discourse about our understanding of authorised public space, formal place-making and social order within the city in relation to these informal spaces.

The text discusses various cases from Chile, the US and China that illustrate the dilemma of the relationship between informality and public/private space today. One could say that informality is a deregulated self-help system that redefines relationships with the formal. Temporary or permanent spatial appropriation has behavioural, economic and cultural dimensions, and forms of the informalare not always immediately obvious: they are not mentioned in building codes and can often be subversive or unexpected, emerging in the grey area between legal and illegal activities.