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Many megacities in the Global South have developed without any systematically regularized modernization processes. Therefore, urbanization is accompanied by the inappropriate level of economic and social opportunities. This macro-structural constraint of urbanization contributes to frame the patterns and features of many location-based poverty and inequality.

Dhaka followed the similar trajectory of development without creating substantial opportunities for its underclass, poor, and marginalized citizens. This unequal pattern of development influences the disproportionate environmental burdens of the marginalized people, who have little or no voice in the urban decision-making process. People experience unequal environmental inequality through their differential exposures to poor housing and/or living conditions, along with a lack of access to safe drinking water, sewage, adequate waste disposal systems, and so on.

In this context of urban injustice, this environmental justice movement (EJM) is an evidence of demanding basic rights among the unprivileged citizens. To some extent, this is a response to the state’s structural failure to provide urban environmental services (and social justice) to majority of its poor citizens.

Evidence suggests that in context of fragile democracy, an EJM can generate opportunities for progressive urban politics as well as contribute to redistributive development opportunities for its poor and marginalized citizens. Most megacities in the Global South inherit urban governance from their colonial heritages, which were often criticized for its citizen-detached and top-down nature.

Dhaka is not an exception in this context. In the present socio-political condition, even though the environmental movement is not very welcomed by the government – more particularly from the ruling political party – it can have tremendous implications on redistributive urban politics. This chapter focuses on Dhaka, which is currently one of the world’s largest megacities in the Global South.

This chapter highlights the local patterns and process of the unequal environmental burdens and the subsequent mobilization, demanding environmental justice in that process, as well as how that movement contributes to redistributive urban politics. The discussions of this chapter also have the implications on public policy discourse focusing on environmental rights, movements, and citizens-centered politics in the megacities of the Global South, with renewed relationships between the state and its citizens.

Dhaka is one of the most populated megacities in the world with a total population of over 12 million and an area of 276sqkm (DCC, 2004). The city is situated at the center of the country and is surrounded by a river system comprising Buriganga, Balu, Turag, and Shitalakhya. The city has a long history dating from the Pre-Mughal, to the Mughal, and, finally, to the Bangladesh period. The growth of Dhaka basically started from the current extreme south and along Buriganga River and then it expanded earlier to the West (Hazaribagh) and the East (Gandaria) and later to the North (Mirpur). However, in the last few decades, the city experienced huge population growth and rapid industrial, commercial, business, residential, and infrastructure development, which have significantly expanded the physical feature of Dhaka. Still many of the development activities are taking place in an informal way within the Dhaka City Corporation (DCC) area, the main part of the megacity.

Affordability and lifestyle choices in housing are critical to meet basic human needs for shelter, security and wellbeing. The meaning of a house for a particular group of people and what is ‘affordable’ for a particular community is the critical issue. Dhaka, the capital of Bangladesh, has greater population density and rate of expansion compared to almost any other mega cities of Asia. The historic core of the city known as old Dhaka is a combination of several traditional neighborhoods. Houses in these traditional neighborhoods are not only places to live, rather an integral unit of a social system, having a good mix of place of work and individual expression in living. They also show flexibility and adaptability (with more scope for personalization and individual life style choices) compared to the contemporary housing stock. One of the success factors in these traditional houses is the healthy mix of the income ranges to avoid a ghetto effect of low cost housing. The recent rapid urbanization has led to a discontinuity of the traditional housing form of old Dhaka, leading to a disintegration of the mix of lifestyle choices and affordability. Following popular market trends, they are often replaced by housing blocks in a higher density ignoring the need for a diverse mix. This paper studies the traditional housing of old Dhaka with two case study neighborhoods. Several elements of housing like the common price, materials and construction, space layout, scale, social space, facades, street interface, etc are selected for a qualitative study. Local residents interview, archival records, maps, Plans, figure-ground, aerial images are used to analyze, identify and demonstrate the elements that made them socio-culturally sustainable and affordable for the community. With the analysis, lessons from the traditional housing form that may contribute to the new housing in Dhaka are identified.

The purpose of this paper is to analyze the effects on urban flood from rapidly growing land and housing development projects in flood zones and water bodies in and around Dhaka. The paper further extends the analysis to generate an insight into Dhaka’s urban flood due to possible climate change effects on top of land and housing development projects effects.

A mixed method was applied for this research comprising qualitative techniques for analyzing the date gathered from reviewing the policies including the Dhaka Metropolitan Development Plan reports, interviews, discussions and maps, whereas quantitative analysis was used to interpret the data gathered from the global positioning system (GPS) survey and questionnaire survey among the resident of the selected housing projects.

Findings show that a large number of the projects have encroached flood-flow zones and ditches and drainage channels through massive land filling, which resulted in quick changes of land use with wide range of impacts on environment and habitat quality. This study highlighted that the potential climate change impact involves increasing rainfall and subsequent increase flooding. Besides, vast area will be submerged under water and increased warming in the city from high speed built-up area by unauthorized land development.

The results of the research can be taken into consideration when making political decisions concerning adaptation to climate change.

Dhaka, the capital of Bangladesh has a recorded history of over 400 years, dating back to the Mughal and pre-Mughal era. A large part of the city's rich cultural heritage; both tangible and intangible, lie in the historic core known as Old Dhaka. There are several traditional neighborhoods with close-knit communities that date back two to three centuries. The communities are rich in social capital gained over successive generations of close social network. Based on this strength, a heritage management system has been developed by informal community bodies in Old Dhaka. Old Dhaka's rich cultural heritage deserves to be conserved for the historical continuity of the city. Unfortunately, the top-down conservation efforts undertaken by the Government are highly bureaucratic and have not been effective in conserving the cultural heritage in most cases. This paper explores the importance of local participatory approach of heritage management in the context of Old Dhaka with a focus on the relationship between social capital and informal heritage management in traditional communities. It also explores the key features that generally make the informal heritage management system more effective than the formal approach. Finally, it recommends an appropriate conservation approach to save the cultural heritage of Old Dhaka where there is a balance between intervention by authorities and continuity of local community involvement.

Dhaka is one of the most vulnerable cities facing exacerbated disaster risks from climate change impacts. While these risks have escalated rapid population growth has made Dhaka one of the fastest growing megacities in Asia with a very high housing demand. In the absence of significant interventions from the public sector, the private sector has become responsible for 70 per cent of the city’s physical development. The political economy of development and limitations in institutional arrangements allow private sector investors an almost free hand, resulting in increased and transferred risks to the public sector and city dwellers in general. Any post-disaster reconstruction in future will be influenced by these existing dynamics. Future plans for post-disaster reconstruction of housing in Dhaka must address issues of growing demand, limitations of risk-free land for development, ownership of land and housing, and limitations of resources.

There are some environmentally critical areas (ECAs) in cities such as flood flow areas, agricultural land, canals, rivers, water bodies, forests and hills that need to be conserved from land transformation. The purpose of this paper is to review the compliance, challenges and significance of urban planning, and to develop a contextual framework of urban planning for environmental area conservation to improve the urban environment in case study city Dhaka, the capital of Bangladesh.

This research is based on a qualitative thematic analysis of the available relevant literature.

This research identified non-compliance of the contemporary urban plans such as indiscriminate land conversion activities in the ECAs. Conflicting interests between the urban plans concerning protection of the conservation areas and business interests of the community people and the real estate development companies are identified as the major challenges. Dhaka faces several environmental problems such as loss of biodiversity and ecosystem, waterlogging, flooding, pollution, reduction of vegetation, groundwater depletion, temperature increase and a reduction in agriculture and fishing because of land conversion in the ECAs.

Urban planning with effective conservation area management, conflict resolution through communication and participation, creation of economic opportunity to generate income from the ECAs and assessment of the conservation strategies and interventions might ensure environmental conservation in Dhaka.

The conceptual framework of urban planning for environmental conservation is innovative as this could be a basis for other cities in Bangladesh and in other developing countries.

Slums, in urban areas of the Global South, are often manifested as the spatial manifestation of urban poverty. In many local contexts, eviction of slums is treated as the recipe of urban development initiative, which is actually wrong and short-sighted unsustainable solution. This chapter addresses some of the interlinked issues and highlights how the megacities of the Global South can pursue a more holistic, pro-poor, and sustainable solutions by dealing this developmental challenge.

This chapter is basically an outcome of a policy research, combining information and arguments from different secondary resources.

This chapter offers a better understanding on the causes and consequences of the slums, along with ideas for the government to tackle this issue and promote better livelihoods for the poor citizens. Even though this chapter focuses on the sustainability challenges in Dhaka, it can have policy implications in other regions with similar social, economic, and political conditions.

The discussion in this chapter does not include an empirical modeling or analysis technique so that the problems can be proven quantitatively. In some future research, a more quantitative approach can help to quantify the losses people are facing in terms of social value, monetary losses, and environmental cohesion.

Without making any provisions for jobs and livelihoods for the poor slum dwellers, the process of eviction might cause the total “city management” system to collapse. Then it is no more an urban development initiative, but rather a government-initiated poverty generation process. Therefore, government can think for solutions at different levels – from local to regional scale, including long-term and short-term sustainability strategies.

Often the governments as well as the policy makers in the Global South treat the poverty problems (including slum formations) from a much narrower perspective. They should rather focus on the issue as part of a big developmental picture. The strategies can start both from macro- and micro-levels. On the macro-level, the government can initiate climate-resilient and pro-poor development strategies. On the micro-level, the government, along with nongovernmental organizations and national and international development partners, can focus on skill development opportunities and policies, so that the poor can live legally, wherever they want, with decent employment and livelihood opportunities.

The paper deals with the challenges and opportunities of enabling resilience of the built environment through building regulations and codes in a developing country context. The purpose of this paper is to explore how voluntary compliance can be achieved, drawing from the views of key stakeholders in this field.

Dhaka, the capital city of Bangladesh, is a central hub of more than 20 million people. The city is growing rapidly in an unplanned manner to host the increasing population, creating vulnerability to different hazards including earthquakes, fires and building collapses. The Bangladesh National Building Code (BNBC) and the building and planning regulations of the Capital Development Authority are the key instruments for ensuring safety, but lack of compliance is widespread. The views of relevant stakeholders on issues relating to compliance of safe building codes for ensuring disaster resilience were documented and analysed.

It was found that those involved in construction activities are in most cases not aware of the BNBC; landowners were reluctant to follow regulations and codes to avoid extra cost; and construction workers were not interested in compliance as there were no incentives. While enforced deterrence is required, it has its limitations in a context such as Dhaka. Raising awareness and building capacity at all levels can offer a way forward for voluntary compliance. Incorporation of knowledge on regulations and codes for disaster resilience into university and technical education curricula are likely to allow developing the capacity of built environment professionals and widespread awareness can be raised through training, media and public events.

There are many publications on building regulations and codes, but few specifically focussing on disaster resilience. Also, much of the discussion on regulations and codes deals with compliance through enforcement, but hardly any deal with the idea of voluntary compliance. There are also a lot of publications on disasters in the case study city, Dhaka, but comparatively few on building codes and regulations specifically for disaster resilience.

Built heritage is a unique resource, an irreplaceable expression of the richness and diversity of our past and of the generations who have gone before us. Old Dhaka has an outstanding built heritage that is of significance not only in the local, but also in a national and regional context. But senseless urbanization and ignorance of such an important issue in the existing detailed area plan is destroying the built heritages of Dhaka. As a result, many heritage buildings of Dhaka have been destroyed and the destruction is going on unabated. Therefore, there is a need to re-examine how such destruction can be prevented. The paper aims to discuss these issues.

This research aims at the identification of heritages, their assessment and classification which is utterly significant for preserving the invaluable heritages. Heritages are classified according to their present condition which will show which type of heritage needs which type of attention.

The research indicates the way how a conservation planning for heritages can be done in a systematic and logical way. It reveals the present condition of the heritage buildings which will point out the way of preservation. There is no such document available which will tell general people about the most important or rare or significant heritages, the location of these heritages, or their background information. This research addresses these all issues.

To date, no conservation plans were implemented for Dhaka and there are no attempts to improve Old Dhaka through an urban design. The methodological approach in this research is new and effective for conserving heritages.