This paper presents findings from a study on people's uses and experiences of their living rooms. In this paper the principle of flexibility design is studied in two line: line 1: Flixibility plan (space, wall, floor, ceiling), and line 2: Flixibility details (furniture). The principles interior design of the housing unit has a significant effect in increasing or decreasing economic and housing building. This research studies the possibilities of flexible designs and the impact on the efficiency of interior design in addition to the using of integrated serves to get a creative and sustainable design to make our city more livable. These solutions vary mechanism from one area to another mismatch of vertical buildings and uses them depends on the reduced space. Because of these necessary needs, designers have started new and creative ideas to design skyscrapers and multi-storey buildings to cover the housing and economic needs.

The increasing of moving from the rural and suburban to the main city offset router by new and creative designs and experiences that seek to solve the problems associated with immigration, as these non-deliberate immigration led to make the city as a template of ice in the vicinity of hot water and cause the melting of this city and ending the efficiency of the economically live, housing and social. It could provide many possibilities to change the shape and size of internal space in addition to the economic and social impacts on the housing system. The flexibility in architectural design can solve the area problems and multi-use plan. Keyword: Living space in a residential apartment, Minimalist furniture. This paper concludes that most of the principles of the minimalist approach have been overlooked at, which had an impact on the space efficiency in the living room. This paper attempts to explore the Influence of Using Minimalist Furniture on the Efficiency of the Living Space by means of the variable resulting from preceding studies based on literature had been creating a checklist to measurement minimalist furniture influencing the living space efficiency. Therefore, living in a small space necessitates minimalist and space-saving furniture solutions to sustain human wellbeing. Since furniture is a necessity and not luxury, everybody is in need of it. The problem of small spaces can be resolved by some ways however, it is still required for furniture to develop to be more innovative to accommodate small living spaces. There is a lot of fundamental need to be preserved and achieved to create human wellbeing. Human necessities are still alike or perhaps it is much more than what it used to be. The marketing prices and the growing urbanization oblige folks into less amount of space.

Small apartments are a consequence of the continuous growing population and urban housing development. Raising the figure of population and restricted land for development in Sulaimani leads to the growing of vertical housings and small apartments.