Thanks to the building’s unique location — built at sea level on reclaimed land along the Bosphorus Sea — "The whole structure is built in chloride rich reclaimed land – namely, you have a four-story parking lot immersed in the saltwater sea.” noted Esen Turan, Sales Coordinator at Xypex Türkiye Topsit A.S. This highly challenging environment, marked by elevated hydrostatic pressure and high salinity, demanded robust and enduring solutions to mitigate the risk of chloride-induced corrosion.

In addition to environmental difficulties, the project team had to navigate a dense and vibrant urban environment and respect the nearby historic sites. The Üsküdar district traces its origins back to at least the 7th century BC, historically serving as
a strategic junction between Asia and Europe, and functioning as a commercial and cultural hub for millennia. Balancing modern construction needs with the area’s rich heritage was integral to the project’s success.

The engineering team employed a top-down construction method to build a very large below-ground structure in record time. This enabled the construction teams to work efficiently in Üsküdar’s high construction density, minimize disturbance to the surrounding community, and safeguard the district’s historical integrity.