ONE Architects Finland

Etusivu
Suomi
Helsinki
ONE Architects Finland

Reittiohjeet Verkkosivusto Ota yhteyttä: Yritys

ONE Architects is formed from the alignment of three successful studios AW2 Architects, B&M Architects and Konkret.

We are a multidisciplinary house of architects focused on creating sustainable architecture and urban landscaped for people to use and enjoy. We bring together different skills, experiences and ideas to create high-quality architecture and urban environments that meet the challenges of people today and of future generation. We have won critical acclaim in both Finnish and international architectural competitions. ONE Architects is equipped with the latest Building Information Modelling (BIM) technology and maintains a continuous research and development programme in the field of architecture. ONE Architects is part of AINS Group – A-Insinöörit, a leading Nordic construction design and consulting company.

20/10/2026

At Riimi, architecture, interior architecture and furniture design were developed hand in hand throughout the project. In addition to the architectural design, ONE Architects was responsible for the interior architecture and furniture design, creating a cohesive environment where the building’s identity extends seamlessly into the interior spaces.

The interior design focused on clarity, durability and user comfort. Materials, colours, lighting and furnishings were carefully selected to support both the architectural concept and the everyday experience of the building’s users.

Our interior architects work across a wide range of projects, helping clients improve functionality, comfort and user experience in environments ranging from educational and workplace settings to residential and service facilities.

Images 1-4 and 6 by Kalle Kouhia
Image 5 by Kuvatoimisto Kuvio Oy

15/10/2026

We’ve recently received a new series of photographs of Riimi, providing an opportunity to revisit the project’s architectural concept and material expression.

Inspired by Runosmäki’s modernist heritage, the building is composed of four interconnected volumes clad in light-fired brick and accented with warm-toned metal details.

The composition breaks down the scale of the building and establishes a dialogue with the surrounding townscape, while the church hall and 16-metre bell tower create a distinctive landmark for the neighbourhood.

📸 Kalle Kouhia

14/09/2026

The interior design of Tampere City Hall brings together the character of the original 1960s architecture with the needs of a contemporary workplace. Openness, transparency and interaction guided the design throughout the project.

A shared lobby connects the original City Hall with the new extension, bringing visitors, employees and decision-makers together. Open sightlines make the activities and decision-making taking place within the building more visible and accessible, while a continuous ceiling structure creates a visual connection between the old and new parts.

The restored City Council Chamber keeps its original 1960s character while adding modern functionality and technology. The new furnishings draw their color palette from Aarne Ervi’s original plans, while large windows bring in natural light and connect the space with the surrounding city.

Together, the interiors create a modern, flexible and welcoming environment that respects Ervi’s original vision while bringing the original building and new extension together as a contemporary whole.

11/09/2026

The Tampere Central Office Building brings together old and new: the original Brutalist building, designed by Aarne Ervi in the 1960s with its characteristic ribbon windows, and a contemporary extension with a modern, transparent architectural expression.

The extension’s most distinctive feature is its façade of coloured glass fins. Shades of blue, yellow, purple and green, created by artist Aino Favén, give the building a dynamic appearance that changes throughout the day with the shifting sunlight and viewing angles. The colourful composition gives the extension a strong visual identity, while the glazed corner enhances openness and creates a stronger connection between the city’s administration and the people and everyday life of Tampere.

The original building was carefully renovated to preserve its architectural character while upgrading its technical performance to meet contemporary standards. Together, the original building and contemporary extension form a cohesive new whole—connecting Tampere’s architectural heritage with the present and looking towards the future.

02/09/2026

🏥 The new forensic psychiatric hospital building in Ohkola has been completed!

This project is a great example of long-term collaboration, bringing together planning, construction, and user needs into a functional, secure, and humane environment.

Thank you to all project partners for your trust and collaboration in delivering this significant project. 🙏
The new Ohkola hospital building is part of the Laakso Joint Hospital Project, for which the principal and architectural design is led by Laakso LATU, a consortium of experienced healthcare design practices: Lukkaroinen Architects ONE Architects Arkkitehtitoimisto Tähti-set Oy UKI Arkkitehdit

📷 Aki Rask

01/09/2026

Leadership Changes at ONE Architects

As of today, Architect SAFA Tuomas Seppänen has been appointed Director, EVP at ONE Architects and Business Area Director at AINS Group.

Having worked as a Lead Architect at ONE Architects and previously at B&M, Tuomas is particularly recognized for his expertise in real estate development and urban planning.

”It is a great honor to lead ONE Architects. I have had the opportunity to help build and develop this practice alongside an exceptionally talented and versatile team of professionals. Our multidisciplinary expertise, combined with our ability to engage in meaningful dialogue and understand our clients’ objectives from a broad perspective, are among our greatest strengths. This enables us to seize a wide range of opportunities and create solutions that meet the needs of even the most demanding projects,” says Tuomas Seppänen.

The previous Director, EVP Jaakob Solla, continues in a Senior Architect role at his own request, focusing on business development, sales, and lead designer assignments.

At the same time, ONE Architects is developing its strategy and renewing its organization into four business units: Public, Living, Industry, and Urban & Special Projects.

22/06/2026

Ilman meidän ihanaa toimistomummo-Marjoa ei pärjättäisi 🩷

28/04/2026

As Oy Olarin Puistonhelmi is complete!
A long project behind us, and the team on site to see the result 🤩

31/03/2026

We’re hiring!
Join our studio in Helsinki and support our offers & marketing team. Part-time trainee position until 12/2026. Apply by April 15th. 🫶🏼

Osoite

RuoholahdenKatu 21
Helsinki
00180

Verkkosivusto

https://www.onearchitects.fi/

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