The project occupies a 469.56 m² plot in Golestan Town, Tehran. Situated within a relatively dense urban context, the design required careful spatial organization. The entrance was placed along the central axis of the site, while the two main volumes were arranged to the east and west. The brick façade combined with wooden shutters reflects a simple yet deeply rooted vocabulary of Iranian architecture.

Usually, in most of the designs that are assigned to a land with this area, access is from one side of the building and each unit is located on the same floor. Here, as seen in the diagrams, the entrance is located in the center of the earth, and the two boys' units are located in the west and east of the earth. The mother and father’s duplex unit is built on the second and third floors around a central main space with a brick dome that shines indirectly. The adjacent spaces of this main space are opened together. The third floor is surrounded by a domed space and consists of a corridor, two bedrooms and a studio. The studio opens from the south to a porch and from the north to a dome space. Natural light has been created for all spaces. In the basement, a crack in the ceiling fills the pool area with soft light. In the dome room and the library, the porch and the toilet, space and light create peace. Light, space and spatial arrangement can create a better coexistence.

The design is inspired by the coexistence and embracing of three spaces together. The house is located in district 22 in an alley where each piece of land has its own personality and shows itself. On the other hand, this house, with a simple brick facade and wooden shutters, shows a house for a rooted family. At the entrance of the house, a small pool welcomes you and you enter the boys' houses from both sides, which go up from the ground floor to the first floor, and have one bedroom on the ground floor and one bedroom on the first floor. The effort in the design was to have two duplexes for the boys to have access to the mother and father's duplex from within themselves, which has been made possible by installing two inside each of the units towards the parent's duplex.

The design is inspired by the concept of “One House, Two Generations, Three Units.” In section, three duplex volumes interlock: two duplexes for the sons on either side of the entrance courtyard, and one duplex for the parents above. At the core lies a central brick dome, illuminated by indirect light, functioning as a shared spatial heart that opens to the library and surrounding rooms. The entrance pond and carefully placed skylights bring tranquility and continuity throughout.

• A brick dome with indirect lighting as the central spatial element. • Movable wooden shutters enabling light and ventilation control. • A roof slit illuminating the basement pool with natural light. • A material palette of brick, wood, and turquoise tiles creating a contemporary yet rooted atmosphere.

This project redefines multi-generational housing within Iran’s contemporary urban fabric. Its design promotes values of coexistence, respecting individual independence while reinforcing family bonds. The use of vernacular materials such as brick and wood recalls traditional Iranian architecture, offering a model for reconnecting modern residential design with cultural roots.

• Urban scale: A modest brick volume within the Golestan Town context, reinforcing local identity. • Architectural scale: Three duplexes organized around a central domed space. • Detail scale: Wooden shutters, turquoise tiling, and lighting details enrich the human experience of the home.