Residential Housing Development at Hebbelplatz, Vienna 10

Urban Design Concept

In this competition entry, the urban design concept was deliberately placed at the center of the planning approach and developed from the contrast between two building volumes: a distinctive, taller head building – the “South Terraces” – forming an urban counterpoint to the school opposite, and a more fine-grained structure continuing to the north, the “North Arc.”

While bay windows and balconies of the South Terraces were consistently planned to face the park, these elements opened towards the quiet residential courtyard in the case of the North Arc.

Open Space and Courtyard

According to the design proposal, a differentiated residential courtyard would have formed the heart of the project, offering residents a high-quality green living space.
The northern, more naturalistic courtyard area would have been dedicated to quiet uses, featuring communal terraces and seating areas set within greenery and a high degree of biodiversity.
In the southern, more active part of the courtyard, which would have been connected to the forecourt via generous passages, the play area and additional places to linger would have been located.

Energy and Climate Concept

An energy roof with south-oriented photovoltaic modules on an extensive green roof would have optimally harnessed solar energy at the site. In addition, subject to economic feasibility, the energy supply would have been supplemented by geothermal energy through deep boreholes in the inner courtyard.
Generous green spaces with existing trees, along with façade greening, would have sustainably improved the microclimate.

Biodiversity and Treatment of Existing Structures

Particular care was taken during the planning process to preserve the existing trees. Underground construction was limited to the necessary minimum.
New, site-appropriate planting was incorporated to enhance biodiversity and to support protected species, such as the European hamster.

Mobility Concept

Bicycle charging stations, parking spaces for cargo bikes, and covered outdoor parking areas were planned as part of the mobility concept.
In the underground garage, a forward-looking concept including car sharing and a large number of e-charging stations would have complemented the overall mobility offer.