Located within the shell of an early 19th century building, the tower commands a magnificent position on the Bosphorus in Istanbul.; Located within the shell of an early 19th century building, the tower commands a magnificent position on the Bosphorus in Istanbul.;

Borusan HQ, Istanbul

Retrofit services for a mixed use building.

Perili Köşk (Haunted House) is the new headquarters for Borusan Holding. Located within the shell of an early 19th century building, the tower commands a magnificent position on the Bosphorus in Istanbul. Borusan Holding has rented this rooted and historical building for commercial use for the next 30 years.

An office museum concept

The new headquarters serves as a mixed use building, including sports facilities and a restaurant. The 5000m2 nine story building also includes a public art gallery, the “Borusan Contemporary”, an office museum concept that opens its doors on weekends to exhibit varied collections.

The building contains a 22m long light tube installation, of which 6.5m is in outdoors, and is the first of its kind in Turkey.

Arup provided structural assessment of the existing building, structural design for the alterations required by the architecture, and design of infrastructuralmechanical and electrical systems.

We also provided project coordination and contract administration, budgeting and cost control, preparation of tender documents, evaluation of the bids, programming for the design and construction stage, change management, evaluation of claims and site supervision services.

Building retrofit services

As the renovations that were implemented previously included the addition of vertical reinforced concrete structural members (walls and columns), our retrofit helped to resolve the irregularity from the lack of continuity in these members. Furthermore, Arup made a number of adjustments to the existing floors, stairs, elevator, etc. to modify the interior to fit the client’s needs.