The Sunila residential area in Kotka, designed by renowned Finnish architect Alvar Aalto, has been inscribed on the UNESCO World Heritage List as part of the 13-site Aalto Works collection. One of the most extensive projects of Aalto’s career, Sunila brings together modern architecture, the history of Finland’s forest industry and working life, and a remarkable connection with nature.
Sunila also holds an important place in the national and international story of the development of the Finnish welfare state. Built along the shore of the Gulf of Finland at the mouth of the Kymi River as housing for pulp mill workers, the community was a groundbreaking example of modern, nature-oriented living when it was created.
“The Sunila mill area and residential district together form Alvar Aalto’s largest realized work and Finland’s first forest suburb. This is not just a single building, but an outstanding overall ensemble. The district also served as a model for many other residential areas. Even after nearly 90 years, Sunila remains a vibrant neighborhood,” says Anne Stocker, Chair of the Pro Sunila Association.
The first buildings in Sunila were completed in 1937. Today, the district is home to approximately 1,100 residents, including Finland’s number one hammer thrower Krista Tervo and Japanese footballer Atomu Tanaka.
Stay Overnight in an Aalto Masterpiece
The Sunila residential area comprises 12 row houses and apartment buildings, the mill manager’s residence Kantola with its seaside saunas, and several architecturally distinctive service buildings.
Visitors can experience Aalto architecture firsthand while staying in apartments furnished according to the design principles of Aino and Alvar Aalto, allowing them to experience the original character of the community from within.
Kantola is open to the public during the summer and can also be rented for private events, meetings, training sessions, and other occasions.
Modern Architecture Applied to Everyday Life
Unlike many architectural landmarks centered on public buildings, Sunila demonstrates how modern architecture can shape everyday life. Conceived as a complete living environment for pulp mill workers, Sunila integrated architecture, nature, and social wellbeing in ways that were remarkably progressive for its era.
For international travelers, Sunila offers a compelling extension of the Aalto experience found in Helsinki. Five sites included in the UNESCO-listed Aalto Works ensemble are located in the Finnish capital: Finlandia Hall, the House of Culture, the Social Insurance Institution Headquarters, Alvar Aalto’s Home, and Alvar Aalto’s Studio.
Located just 130 kilometers east of Helsinki, Kotka’s Sunila district gives visitors the opportunity to experience Aalto’s architecture on an entirely different scale—not simply as individual landmark buildings, but as a complete residential community that continues to function as a living neighborhood today.
Sunila Aalto Homes Invites Visitors to Explore the World Heritage Site on 29–30 August
Architecture, design, and Alvar Aalto enthusiasts will have a unique opportunity to discover the newly designated World Heritage Site in greater depth during the last weekend of August.
At the Sunila Aalto Homes event, taking place on 29–30 August from 11:00 a.m. to 4:00 p.m., Sunila residents will open their homes to visitors. The program will also feature lectures, discussions, flea markets, and workshops for architecture and design enthusiasts.
The event provides a rare glimpse into what it is like to live in a residential environment designed by Aino and Alvar Aalto, while showcasing how a forest suburb planned nearly 90 years ago continues to thrive as a home and community.
Finland’s Eighth World Heritage Site
Sunila has been added to the World Heritage List as part of the Aalto Works collection, comprising 13 buildings and sites representing modern architecture designed by Alvar, Aino, and Elissa Aalto across Finland.
Anne Stocker of Pro Sunila welcomed UNESCO’s decision, saying:
“A new and exciting chapter now begins for Sunila.”
The Aalto Works ensemble becomes Finland’s eighth World Heritage Site. Other Finnish sites already on the UNESCO list include Suomenlinna and Old Rauma.
With its seamless blend of architecture, nature, industry, and community life, Sunila stands as a remarkable example of how modernist design can become more than architecture—it can become a way of living.
