As Oy Kalasataman Messi is a resident-led housing company located at Kalasatamankatu 22 in the Kalasatama district of Helsinki, Finland. It is structured as a Finnish housing company (asunto-osakeyhtiö), providing apartment homes in a multi-storey building in an urban harbourside neighbourhood.1 The project is characterised as a group-built or resident-developed community: according to reporting on the building, the house was commissioned and developed by its shareholder-residents rather than a traditional speculative developer, with a deliberate emphasis on everyday community life.3
The building was completed around 2020 and comprises approximately 40 apartments.3 Architecturally, Kalasataman Messi has attracted professional attention in Finland’s housing and planning discussion. Architectural design and principal design responsibilities were carried out by Arkkitehdit Sarlin+Sopanen Oy, an architecture firm involved in several contemporary residential projects.28 Landscape design, including the courtyard and green areas, was prepared by Maisema-arkkitehdit Byman & Ruokonen Oy, with landscape architect Eeva Byman cited in connection with the project.2 Commentary on recent group-building schemes places Kalasataman Messi alongside other resident-led developments in Helsinki that experiment with more participatory and quality-focused housing production.8
In terms of scope, As Oy Kalasataman Messi functions as a single housing company providing owner-occupied apartments and shared facilities to its residents. It operates within the standard Finnish housing company framework, where shareholders own shares linked to specific apartments and collectively manage the building, its finances and maintenance through the company structure.13