Living space getting smaller and smaller

Talking about the reason, I analyze this problem from 3 part.

SOCIETY

• Families become smaller                                                                                                                   number of household members is declining.
• Longer live expectancy        
• More people & more old people

ECONOMY 

• Houses become more expensive                                                                                                       people own less and rent more
• Transportation is changing                                                                                                               hard traffic will force homes to be closer to work

ENVIRONMENT & LANDSCAPE

• Life cycle of buildings is changing                                                                                                   we need more public space 
• Space becomes more scarce                                    

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