Biochal: Transforming an Abandoned Sand Mine into a Thriving Tourism Recreation Zone

Revitalizing Tehran's Landscape with Biochal

Sand extraction in Tehran has left behind a massive pit, spanning 860,000 square meters with an average depth of 50-70 meters. This abandoned site poses a threat to the city, contributing to environmental pollution. However, designers Amir Sabahi Moosavi and Mansoureh Zahedi have taken on the challenge of transforming this pit into a thriving tourism recreation zone called Biochal. With their innovative approach, they aim to turn a threat into an opportunity and revitalize Tehran's landscape.

The inspiration for Biochal came from the idea of creating a large non-functional hole within the metropolis of Tehran, without the use of artificial barriers such as walls and barbed wire. The immense size of the pit allows for zoning in height and proximity to nature and wildlife, creating a unique and inviting space for both locals and tourists.

What sets Biochal apart from other designs is its ability to convert an abandoned sand mine into a tourist recreation area while increasing the per capita green space in Tehran. The presence of wildlife in a protected region inside the city adds to its appeal, providing a place for citizens to spend their leisure time and connect with nature. Additionally, Biochal aims to create an international tourist zone, attracting visitors from around the world and boosting the local economy with private sector participation and job creation.

The realization of Biochal relies on the natural features of the site. The design is based on a large, non-functional cavity whose walls create a natural fence. The proximity of the Kan River allows for the planting of trees within the pit, providing a habitat for many animal species. This integration of trees and water enhances the ecological value of the site. Furthermore, the project's location near the city and the airport ensures a high number of visitors, contributing to the prosperity of tourism and service spaces.

As a national park within Tehran, Biochal aims to reduce air pollution by increasing the per capita level of green space. It also mitigates the risk of flooding in the Kan River by utilizing the cavity to store excess water during seasonal rains and landslides. By carefully managing the revenue-generating spaces within the park, Biochal can maintain its performance at the highest level, adapting to different seasons and social or international conditions. The presence of protected wildlife adds to the project's strengths, providing a unique and enriching experience for visitors.

The Biochal project started in March 2019 and was completed in July 2019 in Tehran. The designers, Amir Sabahi Moosavi and Mansoureh Zahedi, collaborated with architect Amir Mohammad Sabahi Moosavi, visual 3D effects designer Mansoreh Zahedi, and creative idea designer Samira Katebi to bring this vision to life.

Biochal has received recognition for its innovative design and contribution to urban planning. The project was awarded the Bronze A' Design Award in City Planning and Urban Design in 2021. This prestigious award acknowledges designs that demonstrate creativity, resourcefulness, and a commitment to improving quality of life. Biochal stands as a testament to the power of design to transform threats into opportunities and create a better world.