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For the last 20 years, the Yemeni government has been providing housing schemes for low‐income groups. These low‐income housing schemes have not, however, been evaluated. Based on a post‐occupancy evaluation of three low‐income public housing schemes in Sana’a, Yemen, the paper describes the residents’ judgement and assessment of the environment in which they are living. Interviews with 180 occupants revealed that they attach great importance to the level of satisfaction with their neighbourhoods. The most important factor associated with neighbourhood satisfaction was privacy, a reflection of the cultural background in Yemeni society.

Evaluating housing projects is an essential task to determine the effectiveness of these projects and to provide a useful feedback to the projects’ initiators ‐ be it the public or the private sector. The evaluation could be on a number of different bases. Reports the results of research work aiming to compare the quality and effectiveness of three housing projects initiated by the Yemeni government in the capital ‐ Sana’a. The basis chosen for evaluating the public low‐income housing schemes is the housing quality measurement technique. This technique is used for measuring quality under widely different housing standards. It is a way of assessing the environmental quality and hence evaluating the success or failure of a particular housing project. Satisfaction of residents has also been evaluated and reported in an earlier paper (Al‐Abed and Mustapha, 1996).

The urban population in the developing world will double by the year 2030 increasing the pressure in the housing sector that already suffers from the lack of adequate and affordable housing. Egypt, similar to most countries in the developing world, witnesses a huge deficit in the housing units needed for low-income groups. Since the mid Nineteen Seventies, the Egyptian government adopted and implemented a variety of low-cost housing development strategies including: site and services schemes, core housing projects, partially completed housing units in apartment blocks, and totally finished housing projects. The huge informal housing sector in Egypt has proved the ability of the low-income groups to build for their own-selves. Thus, the incremental housing approach was one of the approaches that were adopted by the Egyptian government to solve the housing problem. Ebny Baitak or “Build Your House” is an incremental housing approach and one of the approaches undertaken by the Ministry of Housing, Utilities, and Urban Development within the National Housing Program to solve the housing problems of low-income groups in Egypt. This paper discusses the recent Egyptian experience in encouraging the participation of low-income groups in the construction process of their own houses through an incremental housing program “Ebny Baitak project”. The paper also derives the implications that could be learned from this experience towards better application in the future.

Virtually all developing countries, irrespective of size and level of industrialisation, are experiencing rapid urbanisation as limited land for cultivation and growing agricultural populations continue to expel families from agricultural regions into cities and large metropolitan areas. By the year 2000, the urban population of the world is expected to grow by 1,400 million, but 1,100 million of that increase will occur in Africa as the urban population of South Asia more than doubles and that of Latin America almost doubles (United Nations Center for Human Settlements, 1984). Within the next few decades, this phenomenon will present unprecedented challenges of massive proportions to policy makers and planners in these areas of the world. Relevant to the theme of this article, the land and housing needs of low‐ income and disadvantaged groups, in particular, will become increasingly urgent. Indeed, the central characteristic of the Third World urban housing crisis is the fact that the majority of households cannot afford the cheapest legal housing plot, let alone the cheapest legal house. Thus, in the developing nations of the world, a third to three‐quarters of the largest cities' inhabitants live in residential developments consisting mainly of self‐constructed dwell‐ings on illegally occupied or subdivided land with few basic services (Satterthwaite, 1983).

Over the past three decades, a small community of eighty-four Chilean low-income families has built and improved their home incrementally, without any technical assistance, showing an impressive performance. A six square meters bathroom on a serviced plot of land with individual connection to potable water, sewerage, electricity and access roads, worked as a starting point back in 1974. However particular their rationale may seem, the individual history of their housing process reveals some general regularities in occurrence and duration of self-build activities, as well as size and allocation of the domestic spaces. A small random sample of fifteen households was selected to tell the story and explain the whys, hows, and whens of an ever-evolving housing process. Semi-structured interviews and building surveys were both combined to reconstruct the sequence of states of each housing process, with the awareness of the characteristic imprecision of oral information transfer. Alternative states were explored by constraint programming methods and spatial qualitative reasoning. Considering the hard constraints over the site morphology and services allocation, the results of the exploration stress how extraordinary lucid and intuitive the surveyed families are when making their design decisions. The article exposes a reconstructive case study on spontaneous growth patterns underlying an unassisted, incremental self-build housing dynamics.

Housing delivery systems have been classified as developmentally‐orientated or conventionally‐orientated. It has been claimed that a developmentally‐orientated approach to building procurement would encompass the parameters of community empowerment and participation in design, job creation via the development process, and economically and environmentally‐sustainable procurement (Taylor & Norval 1995). New building procurement systems display an increasing awareness of sustainability, but concentrate on economic and social sustainability, as opposed to environmental sustainability. The purpose of this paper is to document and evaluate the extent to which issues of environmental sustainability have been incorporated in the delivery of affordable housing in South Africa. The paper elaborates on a range of relevant principles for sustainable construction, which incorporate: minimisation of resource use; maximisation of reuse of resources; maximisation of use of renewable and recycled resources; use of non‐toxic materials; protection of nature; achievement of quality criteria; and promotion of labour intensive methods, skills training and capacity enhancement of local people. The authors examine the extent to which the principles of environmental sustainability have been applied, both in practice and in the formulation of South African housing policy. Finally, recommendations are made for the application of criteria for environmental sustainability in the delivery process of affordable housing in South Africa.

This paper presents concepts important for understanding urban poor housing in Vietnam, with a focus on key environmental, socio-economic, and cultural dimensions that bear on the housing sector. The paper draws on extensive field studies and presents a diagnosis of the context of and prospects for housing of the urban poor in Vietnam's two main cities: Hanoi and Ho Chi Minh City. While the literature on this theme is scanty, it points to the market-orientated economic reforms initiated in the 1980s as a key factor in creating imbalance in the housing supply. Recognising the current challenges in balancing affordability and sustainability, the study explores Vietnam's lack of adequate and affordable housing and the problems faced by the urban poor in accessing adequate housing.

The purpose of this study is to evaluate the housing delivery to the low income through the Self Help Housing Agency (SHHA) in Gaborone, Botswana.

Data were collected through the use of questionnaire, interviews, records searches and observations using the mixed-method approach to establish why people sale houses. Proportionate and simple random sampling was used to obtain a sample size of 93 plots for both new SHHA areas and old SHHA areas at 90 per cent confidence level. For each plot, data pertaining to plot allocation, plot ownership, exchange of ownership over the years were collected.

The findings revealed that the programme has been hit by challenges emanating from the low-income group selling their houses to middle-income group which is predominant in the area thus leading to gentrification. It was also established that the number of sales in SHHA areas were increasing as evidenced from the transfers that were taking place. This could be influenced by the increasing demand for housing due to a growing population in Gaborone. The findings also revealed that demand is one of the determinants of rising prices, thus an incentive to the low-income group to sell their houses at higher prices.

The implication of these findings is that the low income will be displaced and might become homeless in future thus creating an opportunity for illegal settlements to develop.

The study has provided a context in which housing delivery to the low-income group can be safe guarded.