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Sumit Singhal
Sumit Singhal
Sumit Singhal loves modern architecture. He comes from a family of builders who have built more than 20 projects in the last ten years near Delhi in India. He has recently started writing about the architectural projects that catch his imagination.

E2 Ecology and Economy in City of Kouvola, Finland by BIG

March 19th, 2011 by Sumit Singhal

Corbusier’s DOM-INO system was developed to industrialize construction with the new technologies of concrete structures at the time, and bring qualitative space to the masses. Today we face different challenges that call for new solutions.

Model 01

  • Architect: BIG
  • Name of Project: E2 Ecology and Economy
  • Location: City of Kouvola, Finland
  • Program: Housing
  • Publish date: March 15, 2011
  • Type: Prequalified Competition
  • Size: 15,000m2, 8-story prefabricated wood construction
  • Client: City of Kouvola, Finland, SITRA-Finnish Innovation Fund
  • Collaborators: AOA, Pirmin Jung Holzbauingenieur, Vahanen, Stora Enso
  • Status: 1st Prize / In Progress
  • Partner in Charge: Bjarke Ingels, Thomas Christoffersen
  • Project Leader: Brian Yang
  • Team: Krista Meskanen, Jelena Vucic, Alina Tamosiunaite, Alessandro Ronfini, Cecilia Ho, Elisha Nathoo, Sunming Lee, Long Zhuo, Mads Bjorn Christiansen

Model 02

The vast majority of construction in forest rich Finland utilizes concrete. PUU-BO presents an alternative for the construction industry: to build new sustainable structures with wood. We address the growing demand for energy efficient, low carbon structures with an ever-evolving building system that is both competitive and innovative.

View From Distance

PUU-BO is a comprehensive prefabricated solution that is both more flexible and materially efficient than anything else on the market today. It is a system based not on predefined, standard elements but best practices. As such, it is designed for evolution. PUU-BO is engineered to be adaptable across a range of typologies and building uses – the very same elements could be used in both a 2-storey residential house and a wood skyscraper with no loss in material efficiency!

Aerial View

An 8-storey low-energy pilot project is planned in the Finnish city of Kouvola, on the banks of the river Kymi. It is expected to be built in 3 phases, giving us the opportunity to evaluate and improve the system from phase-to-phase in an iterative process. Simultaneous product development, testing, and other efforts are to be pursued with the relevant stakeholders.

Side View

BIG (DK) + Pirmin Jung Engineers for Wood Constructions (CH) + AOA Anttinen Oiva Architects Ltd (FI) + Vahanen Engineers (FI) + Stora Enso (FI) is the winning team to design a prototype wooden construction system for a pilot project in Kouvola, Finland that will serve as a showcase for the sustainable use of timber construction worldwide.

Side View

To meet the increasingly stringent environmental requirements of Finnish industrialized construction, the E2 Ecology & Economy tim­ber development competition aims to find a conceptual design solution for large-scale production of wooden multi-story buildings. A 15.000 m2 prefabricated wooden development in Kouvola, Finland will serve as a showcase for replicable and locally adaptable cost- and energy efficient housing. BIG’s proposal PUU-BO is today announced as one of two winning entries of the two-staged invited competition totaling 26 international proposals.

Courtesy of BIG

“PUU-BO was the only proposal to truly acknowledge the aspiration of the E2 Competition: to look at the surroundings of the build­ings and the spaces in between as potential opportunities for green development”, Jury, E2 (Ecology + Economy).


Wood as construction material brings a double benefit: remarkably reduced emissions in its production and fabrication and im­proved energy efficiency of the buildings where it is used. Currently, only a fragment of multi-story buildings utilize timber construc­tion in Finland, a country known for its timber production. BIG’s PUU-BO is a comprehensive prefab solution designed to be both extremely flexible and materially efficient. PUU-BO’s conception as a system based on best practices and not predefined standard elements, gives it an embodied intelligence and ensures its viability for the future. The system’s easy adaptability to a variety of building typologies and uses, opens up new possibilities for prefabricated wood systems beyond the residential market – the very same elements in the residential pilot project could be used in an office building or even a wood skyscraper with no loss in material efficiency.

Courtesy of BIG

“BIG’s point of direction was to design an innovative system that can fit any built environment for any type of use. Rather than devel­oping a system based on current market demands, we wanted to make a system so flexible it can embrace as many building typolo­gies and functionalities as possible. Instead of making the most carbon neutral system at present; we develop a system that evolves into the future. This way the system respects the ever increasing key drivers for sustainability while being competitive with other building systems”, Thomas Christoffersen, Partner-in-Charge, BIG.

Courtesy of BIG

A site with generous views towards public green areas and the city’s river has been specifically selected for this pilot project by the city of Kouvola. The location allows the volume of the proposed building to push from one side to the other side to integrate the park and parking along the development. BIG’s proposal follows the contours of the landscape creating semi-private pockets directly con­nected to the park while the height of the building is manipulated to peak towards the open areas. The pockets are surrounded by lower housing creating an intimate space where all units are connected to the ground. The areas with the best views have the most floors and the most apartments while all roofs are partially accessed by the penthouse apartments and all units at ground floor have access to private gardens to both sides.

Courtesy of BIG

“Le Corbusier’s DOMI-NO system was developed to industrialize construction with the new technologies of concrete structures, and improve living conditions for the many. Decades later concrete housing has become synonymous with boxy and boring. By crossbreed­ing state of the art building technology and wood construction PUU-BO provides endless variability with infinite renewability” Bjarke Ingels, Founder and Partner, BIG.

Concept 02

BIG’s E2 proposal combines a variety of housing typologies – from 8-story apartment buildings to low townhouses with a shared courtyard space. Along both sides of the building a pedestrian path connects the private gardens to parking and park. The path blends with the existing network, integrating the building with the park, river and city. Playgrounds, sports fields, and a community sauna in the river are strategically placed in order to activate the site. All activities are available to both the PUU-BO inhabitants as well as the citizens of Kouvola.

Concept 01

About E2

The city of Kouvola in cooperation with the Finnish Forest Industries association, the Finnish Forest Foundation, the Finnish Funding Agency for Technology and Innovation, The Finnish Innovation Fund SITRA, KSS-Energia Oy and the Regional Council of Kymenlaakso aims at fostering new solutions for industrial production of wooden multi-story buildings through the launch of E2 Timber Develop­ment Competition and a future Centre of Competence in Timber Construction, “Wood-Inno”. The concept competition is expected to offer energy efficient solutions which reduce the carbon foot print, and could help Finland to take leadership in the field of timber construction worldwide.


About BIG

BIG, founded in 2005 by Bjarke Ingels, is an architectural office currently involved in a large number of projects throughout Europe, Asia and North America. Based in Copenhagen, Denmark and with a newly opened office in New York, USA the office is led by six Design Partners, including Bjarke Ingels, Andreas Klok Pedersen, Finn Norkjaer, Thomas Christoffersen, Jakob Lange, David Zahle and two Management Associate Partners, Sheela Maini Sogaard and Kai-Uwe Bergmann. BIG’s architecture emerges out of a careful analysis of how contemporary life constantly evolves and changes, not least due to the influence of multicultural exchange, global economic flows and communication technologies that together require new ways of architectural and urban organization.

Concept 03

About Pirmin Jung

PIRMIN JUNG Ingenieure für Holzbau AG is a leading engineering specialist for multiple-storey timber constructions. For the past 15 years, Pirmin has worked closely with designers and architects, creating efficient sustainable and long-lasting wooden solutions worldwide.


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Categories: Housing Development, Sustainable Design

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