proposal for net-zero landmark office in warsaw highlights adaptive use and ecological design

revistula net zero workplace redefines warsaw riverfront

ReVistula transforms an existing office building along Warsaw’s Vistula riverfront into a net-zero landmark workplace. Designed by MJZ with Łoskiewicz Studio for Syrena Real Estate, the project reimagines the structure through circular thinking, ecological strategies, and new construction technologies. Instead of demolition, the proposal embraces reuse as a forward looking model for sustainable urban development. Developed with a focus on long term environmental value, the project responds to international tenants seeking spaces aligned with ESG standards. Conceived as both a workplace and a prototype, it demonstrates how existing buildings can evolve into premium, climate conscious landmarks along the riverfront.

CNC milled rain gutters with greenery attach to the existing concrete slabs | all images courtesy of MJZ

circular design and material reuse shape office architecture

MJZ with Łoskiewicz Studio‘s design begins with an analysis of the existing structure, sunlight, and opportunities to recover materials from the original facade. These elements are repurposed within the new interiors, while exposed concrete slabs reveal the building’s original construction and reduce the environmental cost of demolition. A new glass facade framed in timber is set deeper within the envelope, creating natural shading and allowing the slabs to extend as terraces. These terraces form part of an ecological system inspired by the Vistula River, positioning the building as a responsive, living environment.

Water circulation is integrated throughout the building to regulate internal climate. Horizontal channels guide water through planted zones, where tall grasses filter and cool it naturally. This hydro botanical system supports greywater reuse while shaping the spatial experience of the building. Vegetation also acts as passive shading, with deeper planting areas providing protection from direct sunlight. Together, water and plant systems create a layered environmental strategy that enhances both performance and comfort.

rain channels frame view terraces and green tall water filtering grass

social and esg driven design by MJZ and Łoskiewicz Studio

The roof is designed as a hydro botanical landscape combining water reservoirs, greenery, and shared spaces. A large basin connects to the building’s water systems, supporting passive cooling while creating an accessible environment for users. Mechanical systems are relocated below ground to free the roof for public use. An additional floor is introduced using a CLT timber waffle slab structure. Exposed timber columns allow for an open, flexible interior that can accommodate a range of functions, from workspaces to events and recreation.

At ground level, coworking spaces and a restaurant activate the building and strengthen its connection to the city. Interior materials reference the sandy riverbanks of the Vistula, while graphic elements draw on local vegetation and Warsaw’s mermaid symbol, linking the project to its cultural context and the identity of the client. Supported by detailed cost analysis and sustainability expertise, the project aligns with climate neutrality goals and ESG benchmarks. ReVistula proposes a new model for transforming existing buildings into environmentally responsible workplaces that engage both their users and their surroundings.

rooftop garden with hydrobotanical water filtering pond

the project transforms the structure through circular reuse of materials, a hydro-botanical facade and rooftop garden

adaptable office space under the new CLT slab with exposed wood

city views seen through tall grass on terraces and water gutters stretching along all facades on every level

open lobbies as comfortable and inviting spaces

circular skylights are integrated in the rooftop slab to deliver natural light to the multipurpose space underneath

the main groundfloor area is a coworking space with a reception desk with views to the street level

undulating sofas echo the forms of sand dunes typical of the Polish landscape

the ground floor features a concept restaurant open to all guests

seating areas in the undulating walls are built-in to increase comfort inside

environment, adjacent river landscape and recycling potential as main points of inspiration for the solid and facade

project info:

name: ReVistula
architects: MJZ & Loskiewicz Studio

location: Warsaw, Poland

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edited by: claire brodka | designboom

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