Wohnhaus Stolberggasse, On a deep and narrow lot in Vienna’s 5th district, an urban void was closed by a two-tiered residential building.
© Erika Mayer
Its de ning feature is a carefully proportioned concrete framework facade, with expansive floor-to-ceiling windows that let daylight enter deep into the building.
© Erika Mayer
Along Stolberggasse, the street-side volume contains 14 apartments on eight floors of roughly square shape. Its courtyard-side counterpart houses a total of 13 apartments on seven floors. Both are crowned by fully glazed and setback top floors, which form the upper levels of an array of maisonette apartments.
© Erika Mayer
In the yard between these two buildings, as well as behind the courtyard-side volume, gardens and playgrounds create a green archipelago in the urban fabric. Access is through a series of ground-floor passageways, further articulating the transparent nature of the project.
Project Info
Architects: Josef Weichenberger Architects
Country: Austria, Wien
Area: 700 m²
Year: 2015
Photographs: Erika Mayer
Architect In Charge: Josef Weichenberger Architects + Partner
Collaboration: Benno Wutzl, Stefan Fussenegger
Plot Area: 700 m2
Built Up Area: 340 m2
Building Physics: Ingenieurbüro für Hnik, Meler ZT GmbH, Hempel
HVAC Engineer: Ingenieurbüro Schulterer
Structural Engineer: KS Ingenieure
Construction Management: SEG Stadterneuerungs- und Eigentumswohnungsgesellschaft m.b.H.
Electrical Engineer: TB Kubik-Project KG
Isabelle Laurent is a Built Projects Editor at Arch2O, recognized for her editorial insight and passion for contemporary architecture. She holds a Master’s in Architectural Theory from École Nationale Supérieure d’Architecture de Paris-Belleville. Before joining Arch2O in 2016, she worked in a Paris-based architectural office and taught as a faculty adjunct at the École Spéciale d’Architecture in Paris. Isabelle focuses on curating projects around sustainability, adaptive reuse, and urban resilience. With a background in design and communication, she brings clarity to complex ideas and plays a key role in shaping Arch2O’s editorial