The administrative building of Helsinki Railway Station, originally designed by Eliel Saarinen and completed in 1909, was transformed into a Scandic Hotel. The administrative building is an integral part of the Helsinki railway station, a city and cultural-historical entity that has been operating since its completion as an office building for the railway administration. The difficulty class of the design project was exceptionally difficult.

The oldest part of the building was built based on a 2017 Futudesign winning concept for an extension. AS&H was also responsible for the main design of the extension. The hotel complex comprises almost 500 hotel rooms, of which about 10% are accessible. The corridors in the building are historically protected. Therefore some walls and corridor doors could not be modified. As a result, rooms are different sizes on each floor. There are several hundred seats for breakfast, bar and restaurant facilities, as well as a banquet hall, which can be divided into several different meeting rooms. Scandic Grand Central Helsinki is one of the largest hotels in Finland.