Mimar Sinan 4-Storey Underground Parkade
The Mimar Sinan Underground Parkade, completed in 2023 as an initiative of the Istanbul Metropolitan Municipality, lies beneath the newly developed Mimar Sinan Square in Istanbul’s historic Üsküdar district. Extending over four underground levels and accommodating up to 956 vehicles, this facilitydirectly addresses long-standing parking shortages, eases local traffic congestion, and bolsters urban infrastructure.
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.
Overview
Market Segments
General Construction
Marine Structures
Waterproofing
Topsit A.S.
Engineering
Baru Construction A.S.)
General Contractor
Baru Construction A.S.
Location
Üsküdar, Istanbul,
Türkiye
PRODUCTS USED
ConcentrateApplied as a cementitious slurry to the surface of existing above or below-grade structures to waterproof and protect the concrete against high hydrostatic pressure and aggressive environments.
Formulated as a crystalline, fast-setting hydraulic cement compound for concrete patching and repair. It stops flowing water in seconds and is used to seal cracks, fill tie-holes and other defects in concrete.
Specifically formulated for restoration of concrete damaged by microbial induced corrosion, abrasion/erosion and chemical attack.
Incorporated during batching, add waterproofing and durability to the concrete, with formulations available for a diverse range of mix designs for above-ground and underground structures.
