As Global Designers of Future Cities



si-architecture video presentation


si_architecture is an international multidisciplinary consultant, offering a unique portfolio of architecture, planning and consultancy services. We specialise in commercial, mixed-use, cultural projects and master-planning developments, both in the region and around the world.

We work in all scales and sizes: from urban design and low-carbon master planning, high-rise towers to complex mixed-use projects and smaller, highly refined cultural projects.

We enjoy creating compact, mixed-use and walkable cities. Mission: Green and dense!

Steffen and Igor are pioneers in sustainable cities and energy-efficient building design. With 20 books published on the principles of sustainable urban development, they have been lecturing worldwide on this topic for the last 25 years.

A digital copy of our brochure can be accessed here: Brochure 2021




si-architecture will add prestige to your project



The unique characteristics of the si_architecture studio:

As global designers of future cities, si_architecture works in all scales and sizes: from urban design and low-carbon master planning, high-rise towers to complex mixed-use projects and smaller, highly refined cultural projects.They enjoy creating compact, mixed-use and walkable cities. Mission: Green and dense!

Steffen and Igor are world-leading pioneers in sustainable cities and energy-efficient building design. They have published 20 books on the principles of sustainable urban development and design, and have been lecturing worldwide on this topic for the last 25 years.

si_architecture embodies the optimism that underpins the practice, similar to the “si…yes!”, embracing a positive attitude that our world could be more joyful, engaging, and resourceful.

si_architecture will add prestige to your project.

si_architecture combines three unique characteristics:

Capability 1

    An immense international experience
  • Prior to establishing si_architecture, Steffen and Igor have both worked globally for many years with internationally recognized architects Arata Isozaki and Enric Miralles, working at the highest level of architectural and urban design.
  • si_architecture has designed numerous building typologies and we are very flexible in our thinking. We understand the high-end commercial real estate sector, and have worked extensively in cities, including Barcelona, Berlin, London, Dubai, Los Angeles, Shanghai, Sydney and numerous others.

Capability 2

    A deep understanding of cities in Asia and the Middle East
  • Steffen and Igor know the cities and culture of Asia and the Middle East very well. They have lived and worked in Asia and the Middle East; and they have been visiting China regularly for 30 years. They deliver design concepts that are suitable to the Asian, Chinese and Middle Eastern city of tomorrow.
  • Mission: Global designers of future cities!

Capability 3

    Design that is underpinned by careful research, strong concepts and a clear, realistic approach to sustainability
  • Both, Steffen and Igor are full professors of architecture and urbanism at leading universities in the US, UK, Australia and the United Arab Emirates. Their work is underpinned by clear and actionable principles of green technologies, environmentally sustainable design and resource-efficiency, which are key drivers of their design proposals. Design is relevant to fight the climate crisis.
  • Careful research allows us to create a design that reflects the authentic context, unique identity and spirit of the place.
  • Mission: Enjoy sustainable architecture!
capability graphic

si_architecture embodies the optimism that underpins the practice, similar to the “… si! ... Yes!”, embracing a positive attitude that our built environment could be more joyful, engaging and resourceful.