Dittmar & Indrenius has operated at the same prestigious address since 1978. Its headquarters is located in the Grönqvist Building, a landmark completed in 1882 and once the largest stone residential building in the Nordic countries — today one of Helsinki’s most significant Neo-Renaissance structures.

The interior design concept was built around the building’s architectural character and the long history of Dittmar & Indrenius, founded in 1899. Large surface materials and fixed furniture solutions were selected to convey quality, continuity, and a sense of permanence. This calm foundation is enriched with warm, contemporary details that reflect the firm’s approachable culture and everyday joy—elements such as modern lighting and small-scale furnishings.

A key focus of the project was improving connectivity. Futudesign was responsible for both the architecture and the interior design. A new internal staircase and a link between client areas and staff facilities now tie all office floors together and streamline daily workflows. At the same time, accessibility and circulation routes were updated to modern standards. The renewed break areas—a spacious kitchen and a working café—create inviting spaces for both informal encounters and celebrations. As a result, the redesign strengthened not only the physical connections within the building but also the social ones: the break area has become a natural meeting point where people genuinely enjoy spending time together.

Lighting and technical systems were extensively upgraded to meet the needs of modern work, with improved energy efficiency and sustainability. Materials were chosen for durability and reparability, and suppliers with strong circularity principles were prioritised. Existing surfaces were preserved wherever possible, and only what was necessary was renewed. Furniture was updated by reusing and reupholstering existing pieces and reorganising them into more functional ensembles.

The firm’s extensive book collection found a new home near the break area. A fully bespoke library—complete with full-height modular shelves, a ladder, and crafted rail details—honours Dittmar & Indrenius’s long tradition of legal scholarship. The modularity ensures durability and adaptability for future spatial changes.

The design pays respect to the historic architecture of the Grönqvist Building while supporting modern ways of working and a sustainable, communal office culture. The final outcome harmonises classical choices with light, modern details—offering a workplace that is enduring, user-centred, and deeply rooted in its architectural context.