Poor people are more vulnerable to sickness, which in turn makes them poorer. On the other hand, well-being and the good life, having materially enough facilitates physical strength, enabling a better livelihood.

Sustainability: was a term first used by fisheries

What is sustainability?

- Is when a subject is able to be maintained at a certain raye or level.

- Equitable distribution of resources and opportunities.

- Living within the limits of nature.

- Understanding the connection among society , environment and economy.

What is sustainable development?

Is to meet the needs of people without compromising the ability of future generations to meet their own needs.

Concept of human needs:

Maslow hierarchy-

.Our actions are motivated by certain physiological and psychological needs that progress from basic to complex.

5 stags divided into:-

- deficiency needs ( first 4 levels)

- Growth needs (top level)

Top stage is “self actualization “

Transcendence refers to the very highest level of human consciousness

Social sustainability:

Is concerned about human  well -being and flourishing of societies for now and future

Also, it is the process for creating sustainable places by understanding what people needs

Human well-being : what is it?

It is the extent to which the individuals have the ability and the opportunity to live the kinds of lives they have reason to value.

If people have the basic good life - freedom ,health, security and good social relations- these will provide for the physical , social and psychological fulfillment.

Human well-being is the opposite end of poverty

The ecosystem: Dynamic complex of plant, animal and the non-living environment interacting with it

The ecosystem offers us :

- provisioning services ( food and water)

- Regulating services (floods and disease)

- Supporting services ( soil formation and photosynthesis)

- Culture services ( religion and education)

Social production theory:  space is not a thing nor a container , it is a product of nature.

Thus space is produced socially.

There are 3 types of production of spaces:

1- lived space ( space of subjective experience)

2- conceived space ( space imagined by architects)

3- perceived space ( physical organization space)

Contemporary approaches of architectural sociology:

1 - social construction of space ( how space is socially constructed)

2- place making and identity (how the built environment contribute the formation of collective and individual identities)

3- spatial justice and social equity( relationship between architecture and social justice)

4- sustainable and green architecture ( c treating healthy environment)

5- community engagement

6- virtual spaces