I think there are several mega trends that drive the societal change in the field of architecture. As the era of sustainabilty is taking its stand, issues such as excessive energy and electrictiy consumption, depletion of raw materials, generation of wastes, disruption to nature etc. have become the main topic of public concern. Coupled with the increasing rates of population and rapid urbanization process, questions arise whether mass population is being accommodated in suitable dwellings, and are homes now being developed capable of adapting to occupant's ever-changing requirements.

The one-fits-all design initiatives - where housing is likely to be designed around the capability of a given product instead of around the end-user - conventionally adopted by the architects, are no longer responsive to the current sociel and environmental demand. As such, how will the dwelling adapt to changes of a household over its lifecycle, and how can it adapt to suit different households or changes in external social and physical context becomes a tough challenge waiting for a holistic architectural solution.

Thank you Chee hung Foo for your effective feedback. In that case I have some questions regarding your statements. What is your thinking about suitable dwellings for the large accommodation in case of developing countries? Occupants ever changing requirements depend on the local context and off course dwelling adapts to changes of a household but what will be the regional strategies. In that case, which issue would be more pioneer : Energy issues or Adaptation?? Is there any regional priority for the environmental architecture? Thank you so much again and waiting for your feedback.

Improving the quality of life for all is a fundamental of sustainability.

The politics, education and the climate where you live are key. Affordable homes for all is a desirable objective and do that we need to take lessons from Nature using simple materials like hemp, rammed earth, straw, lotus leaf for example for building. The advanced technologies do solve some but do not solve all problems.

Effective communication at community level is also vital.

Slowly we see more use of user centric design so unleashing the wisdom of local people to participate in design and the use of local materials.

In general the increasing awareness of the planets needs and to treat them with respect so waste and pollution are minimised as well as optimising the consumption of energy and water.

Thank you Prof. for your suggestions. Affordable homes for all may be one of the solution for the tropical climate but at first need to ensure natural ventilation system and indoor comfort. We have various type of local materials like mud, straw, leaf, jute etc. and if we can use these materials with local technologies these may become sustainable. I read one of your research paper " A review of air filtration technologies for sustainable and healthy building ventilation" and think need more research on this issues. Because air dust, pollution become a burning question now days basically for us like tropical warm climate. So what would be the best solution for air filtration in that case? We can also use our waste materials for material development. Finally what about sustainable local construction technologies based on regional priority that reduce energy consumption?

I don’t think latest issues such as climate change, and energy related problems are within the field anymore, I don’t think they can be handled within the Architectural field alone anymore. Large economies pull all design oriented solutions towards an apparent sustainable future. What nowadays move all building machinery, and construction, and city planning are tremendous capitals that manifest themselves in poorly designed architecture and master planning favoring the accumulation of capital. The shift of concepts of sustainability are in the field of economy and politics as stakeholders take interest on certain aspects of the intervention. They are the ones who decide the aesthetic of the objects and the cities specially in developing countries, which is the economic gain rather than the design solutions in every single aspect. So what we are seeing is the aesthetic of waste and reuse, while the countries that have access to new materials are energy consuming the countries in developing countries use labor intensive means to reuse what no longer serves. And the imbalance of what is right has no economic recognition.