Transformation of urban space and water. Investigating and revealing the spatial character of hydrology in the contemporary environment

Rapid urban growth and sustainability are becoming more vital thinking for achieving the biodiversity appeal in the city. In addition, both diameters are needed for a balance intervention to understand their specific routines or attributes for the sound growth and good physical shape of the city where urban population is booming. In the contemporary period, the extra pressure of the population growth of the city is still becoming a fiber for re-shaping it as a livable, sustainable city. According to un-habitat, almost half of the world population lives in all scale of cities. In addition, half of city dwellers are living in a hazardous condition especially in developing countries where it identified as an informal settlement. The lack of almost all urban facilities and their life qualities raise a question of -how the city could marriage with its contemporary issues as a sustainable way. Dhaka city is now an overpopulated city, and it is a home for more than 12.5 million residents. In addition, half of its residents are living in informal settlements where their life is telescoped into a nature of concrete without touching the nature of life. Instead of high density, the city is surrounded by peripheral lowland area which is meant in this study paper as potential wetlands. Almost fifty percent of three hundred sixty kilometers of the city area occupied by wetland area that is not spatially integrated with the city structure and where its dwellers are not getting any advantages from it. With the lack of proper meaning and understanding of the wetlands, it is expended as a backyard of the city. Moreover, which is also using in the most case as household open drainage system, filling up with sands for formal and informal illegal growth of development by interrupting its countless natural ecosystem of the city. Ignore the eco-system of the wetlands and its seasonal advantages- this city now fall in a significant challenge for surviving with its dwellers. In addition, the impact of illegal lowland encroachment and misuse of wetlands are becoming the consequences of rapid urban flood with hazardous living conditions. In this deference, the paper will find out the spatial meaning of water in the built environment. The research reveals the existing peripheral lowlands and its valuable impact on the future growth of the contemporary fast growing city that is framed with the spatial examination of water.