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We are living through what the United Nations has described as "the largest wave of urban growth in history." Today,

around 54 percent of the world's population—nearly 4 billion people—live in cities and towns. By 2030, the U.N.

projects, that number will grow to 5 billion.

With such a crowded future in store, governments worldwide are struggling to provide for people who need help with

housing. But it's one thing to provide low-cost spaces for individuals and families. It's another thing to make those

spaces well-designed and attractive. In previous generations, many countries simply built square apartment buildings

that were designed with one goal in mind: To accommodate the most people for the least cost. Indeed, it has always

been challenging to make governmental budgets stretch to help all those who are in need of place to live.

But today, architects, designers, urban planners and housing authorities are increasingly interested in creating public

living spaces that are cost-efficient, but also eco-friendly and beautiful to look at and live in. Some of the top new

technology trends in these buildings include:

•Solar heating and cooling

•Rainwater recycling for gardening systems

•Urine and feces separating, or composting toilets

•Solar panels for harvesting energy

•Use of recycled materials to cut down on cost

•Use of modern architectural designs to achieve stylish dwellings

•Improved social connections via Internet access

•Improved social gatherings via built-in communal gathering places

•Refurbishing existing structures and repurposing unused locations

The most successful buildings utilize smart designs and innovative technologies, proving that you can create dazzling,

eco-friendly buildings with tight budgets, all without sacrificing style and character. Here are five exemplary social

housing projects that are not only beautifully designed, but use innovative technologies to achieve energy efficiency

and eco-friendliness.

How to conceive eco friendly housing projects ?

1 ) limit the eco impact of construction

A) material - localisation ( proximité, extraction, transport, transformation ) - matières ( wood stone iron concrete )

recycling

B) Technics – modern design – light construction ( ossature bois → bird's wing ) – isolation – sun orientation – recycling

https://www.youtube.com/watch?v=6P6zs9fKDU0

2 ) programms optimisation and smart technologies – Rainwater recycling

– composting toilets

– electricity : Solar panels / wind turbine

– vegetal wall ( limitation of carbon print )

– pellet heating

– smartphone controlling energy cumsuption

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