A high-end office and retail building in the heart of Helsinki
Signe, Mannerheimintie 14, is a premium office and commercial building located in the heart of Helsinki´s Central Business District (CBD). Strategically positioned on Mannerheimintie street, directly across from Stockmann department store, this new building has been designed to meet the high architectural demands of its significant urban location.
The street level of the building features high-end retail spaces for flagship stores and offers a lively streetscape for pedestrians. On the second floor, accessible via Kalevankatu street, there is an expansive restaurant space, with its corner location making it an attractive new meeting spot in the city center. The upper floors from 2nd to 8th consist of adaptable and flexible office spaces designed to meet the dynamic needs of modern businesses. The uppermost floors boast rooftop terraces with views over the city center, offering an unparalleled urban experience. The building consists of 12 300 m² office and 4 500 m² retail premises and the anchor tenant of the office premises is PwC, a multinational accounting firm.
The architecture of Signe is based on a modern interpretation of traditional Helsinki inner-city design. The exterior architecture is defined by well-finished details and high-quality materials. The main material of the facade is natural stone, in addition dark patinated copper and clear glass are also used on the exterior surfaces. The terrace stone cladding features recycled granite. Recycled marble is also used in the interior spaces of the new building.
The cast-in-place concrete frame with post-tension slabs enables highly flexible and open floor plans, both on the office and retail floors. In the planning phase comparative studies were prepared on different frame solutions. The cast-in-place frame chosen is low-carbon due to the significantly smaller amount of steel compared to more conventional concrete or hybrid frames.
The building is designed to meet the high requirements of both LEED Platinum and WELL certification.
SARC+SIGGE is responsible for the principal and architectural design of the project. The building is to be completed by the end of 2026.
Facts
Location: Helsinki
Scope: 23.800 brm²
Client: Sponda Oy
