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THE SOURCE high-rise revitalization
THE SOURCE high-rise revitalization
Munich, Germany
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Other Projects by HENN
THE SOURCE high-rise revitalization
Munich, Germany
Firm
STATUS
Concept
YEAR
2026
SIZE
25,000 sqft - 100,000 sqft
The 22-storey high-rise on Baierbrunner Straße, located in Munich's Obersendling district on the southern edge of the city, will be redeveloped to become THE SOURCE, a state-of-the-art mixed-use complex. The area is also known as the ‘Isar valley’, and was home to pioneering developments in microelectronics and information technology in the 1960s. The 80-meter-tall tower, “the most Southern skyscraper of Germany”, will be renovated and updated for multi-tenant office use.
The Munich landmark, designed by Hans Maurer, was completed in 1964 and functioned as headquarter building for Siemens until 2004. THE SOURCE is a concept for a mixed-use office complex that integrates office spaces, dedicated offices for start-ups, shops, a daycare, cafés and restaurants, a conference center and fitness. In addition to the existing tower, two lower buildings will be constructed on the site, placed to the north and south of the original building.
The decision to conserve and repurpose the existing concrete tower, leaving the cores and structures untouched wherever possible, saves over 5,000 tons of carbon. The original façade has to be replaced to increase the energy efficiency of the building. The new façade references the original pattern, facilitates sun shading between two glass layers while maintaining the intake of fresh air from outside. The building will be powered by geothermal and solar energy, with 3,000 square meters of photovoltaics integrated in the tower’s façade and along the roof edges of the south building. The top of the southern building will be covered in green, contributing to the biodiversity on the site.
The high-rise building offers structurally suitable grids for standard office spaces as well as more flexible co-working environments. Up to four rental units per floor can be served by the two central access cores. Across all three buildings, the ground floor is open to the public, connecting THE SOURCE with its urban environment, a mixed quarter with residential buildings for students and senior citizens that integrate within a blooming urban infrastructure. The northern building will function as the main entrance to the complex, while the southern building is embedded in dense greenery. A sunken courtyard is designed as a terraced playscape for the daycare center.
The orientation of the high-rise tower – facing north with views of the city and south with sweeping vistas of the Alps – has been reflected in the interior concept: focus zones toward the south overlooking nature, and more active, open working zones on the northern side toward the city. The sky lounge at the top of the building will include a café and terrace open to all users of the building.
The Munich landmark, designed by Hans Maurer, was completed in 1964 and functioned as headquarter building for Siemens until 2004. THE SOURCE is a concept for a mixed-use office complex that integrates office spaces, dedicated offices for start-ups, shops, a daycare, cafés and restaurants, a conference center and fitness. In addition to the existing tower, two lower buildings will be constructed on the site, placed to the north and south of the original building.
The decision to conserve and repurpose the existing concrete tower, leaving the cores and structures untouched wherever possible, saves over 5,000 tons of carbon. The original façade has to be replaced to increase the energy efficiency of the building. The new façade references the original pattern, facilitates sun shading between two glass layers while maintaining the intake of fresh air from outside. The building will be powered by geothermal and solar energy, with 3,000 square meters of photovoltaics integrated in the tower’s façade and along the roof edges of the south building. The top of the southern building will be covered in green, contributing to the biodiversity on the site.
The high-rise building offers structurally suitable grids for standard office spaces as well as more flexible co-working environments. Up to four rental units per floor can be served by the two central access cores. Across all three buildings, the ground floor is open to the public, connecting THE SOURCE with its urban environment, a mixed quarter with residential buildings for students and senior citizens that integrate within a blooming urban infrastructure. The northern building will function as the main entrance to the complex, while the southern building is embedded in dense greenery. A sunken courtyard is designed as a terraced playscape for the daycare center.
The orientation of the high-rise tower – facing north with views of the city and south with sweeping vistas of the Alps – has been reflected in the interior concept: focus zones toward the south overlooking nature, and more active, open working zones on the northern side toward the city. The sky lounge at the top of the building will include a café and terrace open to all users of the building.
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