UNStudio’s RIVUS: How a Former Factory Becomes a Cluj-Napoca Riverfront District

UNStudio’s RIVUS master plan in Cluj-Napoca transforms the former Carbochim industrial platform into a 14-hectare riverfront district along the Someș River. Designed with Felixx Landscape Architects and Planners for developers IULIUS and Atterbury Europe, the project brings adaptive reuse, public space, and new mobility infrastructure together in a single mixed-use neighborhood, with construction now underway.

For decades, this stretch of the Someș sat behind factory walls. The land that once carried the name “Meadowland Garden” became an industrial center that fed the city’s growth while cutting residents off from the water. RIVUS sets out to reverse that, opening the riverbank back up to public life while keeping the memory of the site’s industrial past visible in the new district. After the zonal urban plan was approved in 2025 and the building permit followed in March 2026, demolition, excavation, and the restoration of two heritage structures are already happening on site.

What Is the RIVUS Master Plan in Cluj-Napoca?

RIVUS is a large-scale urban regeneration project that converts the former Carbochim factory grounds into a mixed-use riverfront district. UNStudio leads the design, working alongside Felixx on the landscape strategy. The brief came from IULIUS and Atterbury Europe through Rivus Investments S.R.L, and the plan was shaped by a public consultation process that fed local requests directly into the design.

The name comes from the Latin word for river, a deliberate nod to the Someș as the organizing element of the whole scheme. Rather than treating the water as an edge, the plan pulls activity toward it. The building form steps down in terraces as it approaches the riverbank, and the architecture borrows from the movement and geometry of water through fluid facade lines and circular forms. The result reads less like a single shopping destination and more like a piece of city stitched back into its surroundings.

Project at a Glance

The table below summarizes the core figures behind the development:

From Carbochim Factory to Riverfront District

Carbochim was founded in 1949 and grew into Romania’s largest producer of professional abrasives. Its brick and arcade buildings became part of the city’s industrial identity, even as the working platform kept the public away from the river behind it. Instead of clearing the whole site, the plan keeps two of these structures and gives them a second life.

The former administrative building will be adapted into coworking and entrepreneurial space, while the arcade hall becomes a cultural venue tied into the public life of the riverfront. This is the part of the project where heritage and new construction meet most directly, and it sets the tone for how RIVUS treats the past as material to build with rather than something to erase. For readers weighing this approach on their own sites, our breakdown of adaptive reuse versus new construction covers the cost and design trade-offs in detail.

Reusing existing fabric also carries a quieter environmental argument. Keeping a structure preserves the carbon already locked into its concrete, brick, and steel, which is one reason the practice has moved from a niche interest to standard urban strategy. If you want the wider picture, our look at adaptive reuse and sustainable design traces how the idea has spread across cities.

How UNStudio Designed RIVUS Around the Someș River

The river is the spine of the plan. UNStudio’s concept treats the Someș as a connector rather than a boundary, extending the green corridor along the north of the city and reclaiming a riverbank that has been off limits for generations. Roughly a third of the total site is given over to a new urban garden and riverfront park, a striking ratio for a development that also houses Romania’s largest retail area.

That balance of program and open space is consistent with how Ben van Berkel and his studio have worked across their portfolio, from the Erasmus Bridge in Rotterdam to the Mercedes-Benz Museum in Stuttgart. Readers new to the practice can find the full story in our profile of Ben van Berkel’s career and design approach, which traces the fluid, infrastructure-scale thinking on display at RIVUS.

UNStudio’s water-driven language is not only decorative. The circular geometries and stepped terraces create sightlines toward the river from inside the district, while the landscape framework manages how rainwater moves across a large, formerly paved site.

Inside the Mixed-Use Program

RIVUS is built as a layered district rather than a mall with a park attached. The plan brings together more than 400 stores, over 30 restaurants and cafés overlooking the river, offices, coworking areas, cultural venues, and dedicated platforms for local producers and entrepreneurs. The leasable area reaches 165,000 square meters, which makes it one of the widest mixes of uses in any Romanian development.

This diversity of program is what separates RIVUS from a conventional retail box. Daily errands, work, culture, and recreation are meant to sit close enough that the riverfront stays active across the day rather than emptying out after shops close. The approach echoes other recent riverfront schemes, including MVRDV and OODA’s Marvila master plan in Lisbon, which reorganizes a fragmented industrial waterfront into connected neighborhoods.

New Public Infrastructure and Mobility

A district this size only works if people can reach it on foot and by bike, not just by car. The wider urban strategy weaves together pedestrian, bicycle, and road infrastructure to improve access across the area. Two new pedestrian bridges will cross the Someș, linking the district to the rest of the city, and the surrounding streets are being upgraded with bicycle lanes and new roundabouts.

Several of these moves came directly out of the public consultation. The bridges and street upgrades reflect requests raised by residents during that process, and part of the new infrastructure is set to be handed to the Municipality of Cluj-Napoca for community use once complete. That detail matters, because it folds the project into the city’s public network rather than keeping it as a private enclave.

Sustainability and Landscape Strategy

The environmental thinking runs through the whole site rather than sitting in a single feature. Green roofs, planted facades, and locally adapted vegetation are used to slow and absorb rainwater runoff, a real concern on a large site that was previously hard paving. The landscape framework, developed with Felixx, treats planting as structure for the district rather than surface decoration.

The numbers behind the greening are substantial. The plan calls for more than 700 trees and over 100,000 plants, with the riverfront park and urban garden forming the green core of the development. These choices also feed into the project’s certification targets.

Pairing heritage retention with these performance targets is where adaptive reuse and sustainability reinforce each other. Keeping two existing buildings reduces demolition waste and embodied carbon, while the new construction is held to current energy standards.

What RIVUS Means for Cluj-Napoca and UNStudio’s Romania Debut

RIVUS is UNStudio’s first built project in Romania, which gives it weight beyond its size. For a practice with work spanning Amsterdam, Frankfurt, Shanghai, Dubai, and beyond, entering a new national market with a riverfront regeneration of this scale signals confidence in Cluj-Napoca as a design destination. The city has spent the past decade building a reputation as one of Central Europe’s faster growing urban centers, and a project that reconnects it to its river fits that trajectory.

For the city itself, the payoff is access. A riverbank that industry kept closed for generations becomes public ground again, with parks, bridges, and everyday uses that pull life toward the water. UNStudio’s track record on civic-scale work, including recent projects covered in our review of UNStudio’s Wasl Tower and Milan Design Week 2026, suggests the studio is comfortable working at exactly this intersection of infrastructure, public space, and identity. Its retail and experience work, such as the Huawei flagship store in Shanghai, shows the same interest in how people actually move through and occupy space.

Final Thoughts

RIVUS is the kind of project that tests whether large mixed-use development can serve a city rather than just sit inside it. By keeping pieces of Carbochim, prioritizing the riverbank, and handing infrastructure back to the municipality, UNStudio and its partners have framed the scheme around public access first. Whether the lived result matches the renderings will depend on the years of construction ahead, but the intent set out in the master plan points Cluj-Napoca firmly back toward its river.

To follow the project from the source, see the official RIVUS project site and the architects at UNStudio. Further coverage is available through ArchDaily and reporting on the financing and construction start from Romania Insider.