The present plan is an adaptation of the curved shapes of nature, such as water, waves, etc. which have created a beautiful connection in consistent with their surroundings. The current form is a section of a circular arc designed in the size of the requested module which can be reproduced on its four sides. The placement of service spaces in the middle creates opportunity for space expansion. The curve design and structure are organized in a way as to provide sufficient space for water supply and refinement, pumping water, and water heating systems easily. The water stored above the service space and the bathroom can be used for various uses and, if not needed, it can be refined and stored. Water from the service, shower and the sink are also directed to the water refinery tank to be purified, re-pumped, and be stored in other reservoirs. This cycle is a part of the life of the project.