AT Arquitetura

Unimed Federation

Unimed Federation
© Manuel Sá

UNIMED FEDERATION

At Arquitetura

ARCHITECTS
At Arquitetura

LEAD ARCHITECT
Tarso Carneiro

ARCHITECTS
Mauricio Ceolin, Tarso Carneiro, André Detanico, Daniela Yumi Yoshimoto, Ruy Lunardi Neto, Natalia Luz, Dadja Lovato, Guilherme Groth

LIGHTING CONSUTLANT
Cristina Maluf Iluminação

STRUCTURAL DESIGN AND INSTALLATIONS
Studio Bim

APPROVAL AND PPCI
Studio T

ACOUSTICS
Marcos Abreu

WAYFINDING
Studio Mda

STRUCTURAL PROJECT
Diogo Valls

LANDSCAPE
Kucha Saatkamp

AREA
3800 m²

YEAR
2025

LOCATION
Porto Alegre, Brazil

CATEGORY
Office Buildings

English description provided by the architects.

The most sustainable building is the one that has already been built.

Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá

The project for the new Unimed Federation headquarters in Porto Alegre stems from the need for adaptive reuse, expansion, and modernization of the former building.

The proposal seeks to establish a new relationship with the already consolidated urban fabric, while, through the acquisition of three adjacent lots, the new complex is conceived as a delicate gesture of urban generosity:

Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá

the new construction sets back from the street to create a public square, serving as a transition between city and building.

Beyond the technical and constructive challenges of an expansion project, the design aims to meet the demands of a dynamic workplace that ensures user comfort, internal flexibility, and the adoption of sustainable construction technologies.

Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá

The project articulates a hybrid structural system, combining the existing framework of the original building with a new independent structural system, together forming a unified architectural element.

The preserved portions of the old structure establish a dialogue with contemporary components, creating a hybrid character that respects the site’s memory, while the new wing grants structural flexibility to meet modern requirements.

The metallic façade plays a central role: an envelope made of perforated panels and metal brise-soleils that modulate natural light and provide shading, minimizing unwanted heat gains.

Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá

This skin works in tandem with passive comfort strategies — optimized solar orientation and cross ventilation in the work modules.

Inside, the open-plan layout accommodates diverse work environments: silent focus areas, collaborative spaces, modular meeting rooms, and informal social areas. 

Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá

The fluidity between zones allows adaptation to operational needs, fostering a flexible, human-centered scale. The layout also maximizes natural light and views, visually connecting interiors with the urban landscape.

The rooftop terrace complements the complex by providing an open space for shared use, contemplation, and socialization.

Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá

Positioned above the most active areas, it functions as an extension of the building’s interior life — a place for gathering, resting, and leisure — reinforcing the connection with the surrounding context.


Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá


Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá


Unimed Federation
© Manuel Sá
Unimed Federation
© Manuel Sá


Unimed Federation
Unimed Federation


Unimed Federation
Diagram


Unimed Federation
Ground Floor Plan
Unimed Federation
2nd Floor Plan
Unimed Federation
3rd Floor Plan
Unimed Federation
4th Floor Plan
Unimed Federation
5th Floor Plan


Unimed Federation
Section A
Unimed Federation
Section B
Unimed Federation
Section C

AT Arquitetura
T +55 51 33250033
AT Arquitetura
Av. Borges de Medeiros, 1224 - Centro Histórico, Porto Alegre - RS, 90020-024, Brazil