The Lines Apartment is located near Qaitarieh Park in Tehran province. In this residential building, due to the lighting of the building from the three sides of the north, west and east, the main issue in the design is to create quality in the interior spaces and also establish a visual connection with the surroundings and with other buildings built around the building.

The proximity of the surrounding buildings and the presence of large trees on the eastern side of the building created a gentle shade and reduced the intense sunlight. For this reason, designers designed openings and windows as wide as possible. In such a way that even in the bathroom, they have placed a small opening to use natural light during the day. In order to avoid permanent stains on the wide glass of the building, the designers have used the protruding horizontal lines on each floor throughout the facade, which are made of Metal sheets.

Taking into account the local context and architecture of Tehran, the designers used the color game technique using yellow bricks in the facade of this residential building. They have used the bricks vertically and with dark vertical lines in order to make the floors appear higher and to neutralize the horizontal lines of the rain catchers.

In order for the building to be of the same gender as the neighboring buildings and to look beautiful, the parapet wall on the roof is designed somewhat behind the facade of the building. This makes the horizontal lines of the view look stronger and the sky line is more beautiful. The design evokes the integrity and purity of this residential building, which is one unit on each floor, from the inside to the outside by means of a material and with the help of dark sheets.