Stora Enso's new head office in Helsinki – a beacon of sustainable and low-carbon construction

Stora Enso's new head office in Helsinki – a beacon of sustainable and low-carbon construction

Stora Enso has started operations in its new head office, Katajanokan Laituri (= Katajanokka Pier) in Helsinki, the largest mass timber building in Finland. Showcasing the company’s wood products and solutions, the building is a true landmark in sustainable architecture and low-carbon construction. The lightweight, prefabricated mass timber elements allowed the multi-storey, mixed-use building to be the first project in decades to be constructed in the historic, well-preserved as well as culturally significant Helsinki landscape and harbour area.

The building, owned by mutual pension insurance company Varma, was completed on schedule in July 2024. The four-storey Katajanokan Laituri houses Stora Enso's head office and Solo Sokos Hotel Pier 4. The building is also open to the public who now can experience and enjoy the wooden architectural design in its entirety.

"Climate change mitigation is part of Stora Enso's purpose and a strategic business driver. Wood-based materials offer a viable alternative to non-renewable raw materials. Wood products are one of our core business areas. We want to be a forerunner of sustainable building solutions and showcase the way to modern wood use as part of more climate-friendly urban construction of the future. Katajanokan Laituri is a masterpiece of Finnish timber construction. It provides high quality, sustainable facilities for our head office and staff as well as for others working in and visiting the building," says Hans Sohlström, President and CEO of Stora Enso.

Prefabricated wood elements storing thousands of tonnes of emissions

By building from wood, the before-use CO₂ emissions can be reduced by 35% compared to building in conventional concrete. In addition to having a lower carbon footprint than concrete, wood also stores carbon. No other commercially available building material can do that.

The wooden elements used in Katajanokan Laituri have captured 6,000 tonnes of carbon dioxide while the trees were growing. Now the wood will store the carbon in the building for at least the next 100 years. This means that the building stores as much carbon as its 50 years of operation will emit.

"The use of the Sylva™ by Stora Enso kit of parts enabled the large-scale building to be constructed efficiently in a dense urban environment. It took only 171 just-in-time deliveries and seven months for more than 2,000 bespoke load-bearing wooden elements to be installed on site. The mixed-use building concept allows Katajanokan Laituri’s structure to be adaptable for future needs," says Antto Kauhanen, Sales and Business Development Manager at Stora Enso, Wood Products.

Thus, the building is flexible in case the usage changes, making it a great example of a sustainable approach to urban planning and construction," continues Antto Kauhanen.

Antto Kauhanen, liiketoiminnan kehityspäällikkö, Wood Products, Stora Enso

In addition to the sustainability benefits provided by Katajanokan Laituri, the building’s interior follows the biophilic design approach– with architectural and material choices that connect people more closely to nature. Natural materials and lighting inside the building promote well-being, increase productivity, and reduce stress levels – important features in countries where people may spend up to 90% of their time indoors.

Katajanokan Laituri was built by Varma in cooperation with Haahtela, who were responsible for project management. The building was designed by Anttinen Oiva Architects.

Katajanokan Laituri has received several architectual awards

Katajanokan Laituri was nominated for the shortlisted finalist, 2025 Finlandia Prize for Architecture. Archbishop Tapio Luoma has chosen the Katajanokan Laituri office and hotel development as the winner of this year’s Finlandia Prize for Architecture in October 2025. The Finlandia Prize for Architecture is Finland’s most prestigious architectural award, organised by. The Finnish Association of Architects (SAFA). 

The pre-selection jury described the architecture: "Built entirely from wood, Katajanokan Laituri is a sustainable, responsible and low-carbon development. The architecture here is characterised by a sense of optimism and charisma, reflecting its future-focused ambitions."

The purpose of the Finlandia Prize is to promote the appreciation of creatively ambitious, high-quality architecture and to highlight the importance of architecture in generating cultural value and increasing well-being. Read more.

Stora Enson uusi pääkonttori Helsingissä - Arkkitehtuurin Finlandia palkinnon voittaja 2025 

The Association of Project Professionals have awarded Katajanokka Pier as Project of the Year 2025. Read more.

Katajanokan Laituri has awarded also earlier in November, 2024 with Wood AwardThe jury’s statement: "The 2024 Wood Award winner, Katajanokan Laituri, arose from the winning proposal in an international architectural competition and is an impressive demonstration of what is possible in Finnish wood construction today. 

Wooden buildings have traditionally been seen as incompatible with dense urban environments, but Katajanokka Laituri challenges this perception by successfully fitting in with its prestigious, historical surroundings, thereby setting high standards for future construction projects."

Flagship of Finnish Wood Architecture: Katajanokan Laituri Wins Finlandia Prize for Architecture

> Read more about mass timber construction.

Stora Enso Oyj
Head Office Helsinki

Katajanokanlaituri 4
P.O. Box 309 FI-00101 Helsinki, Finland

Photos: Stora Enso/©Kalle Kouhia

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