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LETAJ NO.01
LETAJ NO.01
Tehran, Iran
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Other Projects by Zomorrodi & Associates
LETAJ NO.01
Tehran, Iran
Type
STATUS
Built
YEAR
2025
SIZE
100,000 sqft - 300,000 sqft
The Letaj NO.01 Residential Project is located on Saeedi Street in the Doros neighborhood of Tehran, on a land plot of 1,250 square meters with a built-up area of 9,000 square meters. The building consists of three basement levels, a ground floor, and eight residential floors above ground.
In the basement, two levels are dedicated to parking, while one level is designed for exclusive recreational amenities. This level includes a swimming pool and jacuzzi with advanced systems, dry and steam saunas, a fully equipped gym, showers and locker rooms, a Turkish bath and massage area, a cinema hall, and a bar located in the northeast corner. Dedicated storage spaces for each unit are also provided on this floor.
The ground floor features a luxurious lobby and a multipurpose hall that provide not only a grand entrance but also a social gathering and interaction space for residents. The interior design concept of the lobby and multipurpose hall draws inspiration from Japanese Zen gardens. Exposed gardens with white gravel are designed at the entrance and lobby area, evoking the serenity and minimalism of Zen philosophy. A central column in the form of a tree-like element symbolizes nature within the interior, creating a vertical connection in the space. Its fluid form contrasts poetically with the rigid, angular lines around it, evoking a natural sense of growth and movement, as if nature itself flows through the architecture.
The residential section consists of seven floors, each designed with two east–west oriented units to maximize natural lighting and ventilation. Most units are three-bedroom apartments, while several west-facing units are designed as four-bedroom layouts. The top floor accommodates a unique single-unit penthouse with a large terrace and a winter garden, offering a distinctive experience of luxury urban living. The rooftop includes not only service and utility spaces but also water features, gardens, and an atrium that extend the language of Japanese Zen gardens, adding tranquility and vitality to the building.
A key feature of the project is the inspiration drawn from Zen gardens in the design of both the courtyard and rooftop. The design language employs gravel, stone, and minimal compositions to convey calmness, balance, and modernity. This inspiration is particularly evident in the courtyard design, where the combination of gravel, stone, and minimalist landscaping creates a serene and balanced space for rest and social interaction, while also serving as a source of inspiration in contemporary architecture.
Another defining element of the project is the integration of greenery in the ground floor and rooftop. The use of green walls in public areas not only creates a dynamic and living visual backdrop but also improves indoor air quality and fosters a sense of belonging among residents. These green walls, featuring diverse plant species and smart maintenance systems, provide an ever-changing and vibrant element within the shared spaces.
The façade design began with a pure rectangular form, divided horizontally based on zoning and floor levels. A modular grid was then applied to the surface, introducing rhythm and flexibility into the composition. By shifting and altering sections of the grid, a dynamic façade emerged, balancing solid and void spaces while creating openings that reveal glimpses of interior life while maintaining privacy. The result is a minimal yet luxurious façade of stone-clad volumes, symbolizing strength and permanence. In harmony with the interiors and landscaping, the façade offers residents a serene architectural experience.
The façade and interior design were developed in parallel as complementary elements. Maximizing natural light in living rooms, reception areas, and kitchens was a central principle. High-quality materials, neutral color palettes, and natural textures, combined with minimalist detailing, create a warm, modern, and timeless living environment. Key features of the interior design include the use of green walls in patios, linear lighting in corridors and rooms, and natural stone and wood finishes that, despite their simplicity, create richness and depth. The design team entered the project after the structural stage was completed and, by focusing on the façade, rooftop, interiors, and penthouse, enhanced the identity and architectural quality of the project.
The swimming pool and jacuzzi system of this project has been designed with an innovative approach to provide a unique interaction with water. The entire poolside area is constantly submerged, with only narrow walkways allowing circulation, an approach that impacts both safety and spatial experience. The water depth varies: from shallow streams with just 5 cm of depth that create a gentle, immersive passage experience, to larger sections such as the main pool, children’s pool, and jacuzzi, which allow for diverse aquatic activities. The entire pool deck is designed so that the surface is covered with water, with circulation paths appearing as floating walkways.
What sets this system apart is the result of over a year of research, experimentation, and collaboration between hydraulic and mechanical teams. By applying advanced knowledge of physics and fluid engineering, a unique system was developed: a unified water surface at varying depths and levels, with continuous waterfalls cascading from the edges of the main pool, children’s pool, and jacuzzi. The water is never static; it constantly flows into recessed cavities, passes through multiple filtration and treatment processes, and returns to the shallow areas, creating a perpetual cycle. This not only ensures efficient water circulation and purification but also maintains a dynamic and ever-changing spatial experience. The large water volume and temperature variations between different pools posed one of the greatest design and execution challenges.
This approach transforms the swimming pool from a purely functional space into a living, dynamic architectural feature. The interaction of user movement, changing depths, and continuous water flow creates a layered, multisensory spatial experience that is functional, safe, and visually striking. Circulation paths, depth variations, and water flow enrich the user experience while reinforcing the fluid architectural language, ultimately making the pool the focal point of the complex.
The interior design of the residential units follows the project’s overall concept. Rhythmic patterns in the arrangement of materials and architectural details are evident throughout, from the soft linear repetitions in ceilings and floors to the natural textures of wood and stone, combined with minimalist surfaces to create a calm and balanced atmosphere. This rhythm enhances visual harmony, strengthens the connection between units and common areas, and offers a cohesive and contemporary luxury living experience.
The interiors, enhanced by natural light, coordinated furnishings, and consistent detailing, create spaces that are simultaneously tranquil and dynamic. Emphasizing simplicity, functionality, and the authenticity of materials, the design provides a distinct approach to urban living. Thus, Letaj is not only a response to the functional demands of modern life but also a model of the harmony between beauty, technology, and comfort in contemporary architecture.
The Letaj Residential Project, with its holistic approach, showcases the integration of contemporary architecture, cohesive interior design, and cutting-edge technologies. The use of durable, premium materials such as natural stone, double-glazed glass, and high-quality flooring and façade finishes ensures both aesthetic value and long-term resilience. Modern building systems, including central HVAC, intelligent heating and cooling management, and energy-efficient solutions, combined with fully equipped ergonomic kitchens, elevate daily living to a superior level of comfort and quality.
In the basement, two levels are dedicated to parking, while one level is designed for exclusive recreational amenities. This level includes a swimming pool and jacuzzi with advanced systems, dry and steam saunas, a fully equipped gym, showers and locker rooms, a Turkish bath and massage area, a cinema hall, and a bar located in the northeast corner. Dedicated storage spaces for each unit are also provided on this floor.
The ground floor features a luxurious lobby and a multipurpose hall that provide not only a grand entrance but also a social gathering and interaction space for residents. The interior design concept of the lobby and multipurpose hall draws inspiration from Japanese Zen gardens. Exposed gardens with white gravel are designed at the entrance and lobby area, evoking the serenity and minimalism of Zen philosophy. A central column in the form of a tree-like element symbolizes nature within the interior, creating a vertical connection in the space. Its fluid form contrasts poetically with the rigid, angular lines around it, evoking a natural sense of growth and movement, as if nature itself flows through the architecture.
The residential section consists of seven floors, each designed with two east–west oriented units to maximize natural lighting and ventilation. Most units are three-bedroom apartments, while several west-facing units are designed as four-bedroom layouts. The top floor accommodates a unique single-unit penthouse with a large terrace and a winter garden, offering a distinctive experience of luxury urban living. The rooftop includes not only service and utility spaces but also water features, gardens, and an atrium that extend the language of Japanese Zen gardens, adding tranquility and vitality to the building.
A key feature of the project is the inspiration drawn from Zen gardens in the design of both the courtyard and rooftop. The design language employs gravel, stone, and minimal compositions to convey calmness, balance, and modernity. This inspiration is particularly evident in the courtyard design, where the combination of gravel, stone, and minimalist landscaping creates a serene and balanced space for rest and social interaction, while also serving as a source of inspiration in contemporary architecture.
Another defining element of the project is the integration of greenery in the ground floor and rooftop. The use of green walls in public areas not only creates a dynamic and living visual backdrop but also improves indoor air quality and fosters a sense of belonging among residents. These green walls, featuring diverse plant species and smart maintenance systems, provide an ever-changing and vibrant element within the shared spaces.
The façade design began with a pure rectangular form, divided horizontally based on zoning and floor levels. A modular grid was then applied to the surface, introducing rhythm and flexibility into the composition. By shifting and altering sections of the grid, a dynamic façade emerged, balancing solid and void spaces while creating openings that reveal glimpses of interior life while maintaining privacy. The result is a minimal yet luxurious façade of stone-clad volumes, symbolizing strength and permanence. In harmony with the interiors and landscaping, the façade offers residents a serene architectural experience.
The façade and interior design were developed in parallel as complementary elements. Maximizing natural light in living rooms, reception areas, and kitchens was a central principle. High-quality materials, neutral color palettes, and natural textures, combined with minimalist detailing, create a warm, modern, and timeless living environment. Key features of the interior design include the use of green walls in patios, linear lighting in corridors and rooms, and natural stone and wood finishes that, despite their simplicity, create richness and depth. The design team entered the project after the structural stage was completed and, by focusing on the façade, rooftop, interiors, and penthouse, enhanced the identity and architectural quality of the project.
The swimming pool and jacuzzi system of this project has been designed with an innovative approach to provide a unique interaction with water. The entire poolside area is constantly submerged, with only narrow walkways allowing circulation, an approach that impacts both safety and spatial experience. The water depth varies: from shallow streams with just 5 cm of depth that create a gentle, immersive passage experience, to larger sections such as the main pool, children’s pool, and jacuzzi, which allow for diverse aquatic activities. The entire pool deck is designed so that the surface is covered with water, with circulation paths appearing as floating walkways.
What sets this system apart is the result of over a year of research, experimentation, and collaboration between hydraulic and mechanical teams. By applying advanced knowledge of physics and fluid engineering, a unique system was developed: a unified water surface at varying depths and levels, with continuous waterfalls cascading from the edges of the main pool, children’s pool, and jacuzzi. The water is never static; it constantly flows into recessed cavities, passes through multiple filtration and treatment processes, and returns to the shallow areas, creating a perpetual cycle. This not only ensures efficient water circulation and purification but also maintains a dynamic and ever-changing spatial experience. The large water volume and temperature variations between different pools posed one of the greatest design and execution challenges.
This approach transforms the swimming pool from a purely functional space into a living, dynamic architectural feature. The interaction of user movement, changing depths, and continuous water flow creates a layered, multisensory spatial experience that is functional, safe, and visually striking. Circulation paths, depth variations, and water flow enrich the user experience while reinforcing the fluid architectural language, ultimately making the pool the focal point of the complex.
The interior design of the residential units follows the project’s overall concept. Rhythmic patterns in the arrangement of materials and architectural details are evident throughout, from the soft linear repetitions in ceilings and floors to the natural textures of wood and stone, combined with minimalist surfaces to create a calm and balanced atmosphere. This rhythm enhances visual harmony, strengthens the connection between units and common areas, and offers a cohesive and contemporary luxury living experience.
The interiors, enhanced by natural light, coordinated furnishings, and consistent detailing, create spaces that are simultaneously tranquil and dynamic. Emphasizing simplicity, functionality, and the authenticity of materials, the design provides a distinct approach to urban living. Thus, Letaj is not only a response to the functional demands of modern life but also a model of the harmony between beauty, technology, and comfort in contemporary architecture.
The Letaj Residential Project, with its holistic approach, showcases the integration of contemporary architecture, cohesive interior design, and cutting-edge technologies. The use of durable, premium materials such as natural stone, double-glazed glass, and high-quality flooring and façade finishes ensures both aesthetic value and long-term resilience. Modern building systems, including central HVAC, intelligent heating and cooling management, and energy-efficient solutions, combined with fully equipped ergonomic kitchens, elevate daily living to a superior level of comfort and quality.
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