
This landmark headquarters project in the Ataşehir business district of Istanbul demonstrates the transformative potential of sustainable building retrofit and adaptive reuse. Rather than demolish and rebuild, the existing 20th-century concrete-framed office building was carefully reimagined to create a high-performance, contemporary workplace while significantly reducing environmental impact.
The refurbishment retained the building's primary concrete structure, preserving embodied carbon and supporting a circular approach to development. New high-performance façades and energy-efficient glazing enhanced thermal performance, while the interior was stripped back to its structural frame and selectively reconfigured. Strategic removal of floor slabs introduced dramatic double and multi-height spaces, creating visual connectivity, increased natural light, and collaborative work environments aligned with the client's modern working culture.
State-of-the-art building services were integrated throughout, delivering exceptional occupant comfort, energy efficiency, and environmental performance. The result is a dynamic, flexible workspace that combines architectural innovation with sustainable design principles.
Recognised for its environmental excellence, the project achieved LEED Gold Certification, demonstrating the success of its low-carbon retrofit strategy and commitment to sustainable commercial architecture.
Get In Touch. Ready to create a sustainable building? Whether you are planning a residential project, commercial development, or low-carbon retrofit, our Edinburgh-based architectural services can help bring your vision to life through thoughtful, environmentally responsible design. Explore innovative, bespoke and low-carbon architectural solutions.

AB Architecture & Environment
Edinburgh Office
5 South Charlotte Street
Edinburgh
EH2 4AN
United Kingdom
Tel: +44 (0)131 460 1630
London Office
45 Albemarle Street
London
W1S 4JL
United Kingdom
Tel: +44 (0)207 151 2500

Why Choose AB Architecture & Environment?
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Over 30 years of sustainable design expertise
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Established leaders in low-carbon architecture
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Integrated architecture, sustainability, and building physics expertise
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Proven experience across local, national and international projects
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Research-led, evidence-based design solutions
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A commitment to environmental responsibility, design excellence, and long-term value
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Provision of clear and trustworthy communication with our clients
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We believe successful architecture begins with understanding people, place, and purpose