SSKM Residential and commercial complex
Munich, Germany

Description
Type Residential building
Project New building
Execution 2016-2019
Architect Falk von Tettenborn
Designer HAB Ingenieure
Owner
/ Investor
Stadtsparkasse München


Residential and commercial complex of the Sparkasse (Savings Bank)

In two construction phases from 2016 to 2017 and 2018 to 2019, the Sparkasse Munich built a residential and commercial complex on a property adjacent to the Winterthurer Straße/Berner Straße. The complex, providing a modern ambience, is home to retail stores, medical practices and dwellings. Oventrop state-of-the-art sanitary and heating technology complying with the German Energy Saving Directive (as of November 2013) moved into the object.

The dwellings were created during the first construction phase and are located in the direction of Berner Straße. The units are geared to different needs - whether generational living, living and working, granny flats or guest areas. The focus was on flexibility in occupancy over the entire utilization cycle. The commercial complex located at the Winterthurer Straße was built during the second construction phase. On the ground floor, areas from 50 m² for the retail trade up to 2000 m² for full-range retailers are planned. Space for medical practices was created on two upper floors. Here too, the areas can be divided flexibly and allow for various sizes.

Future-proof heat supply

The heat supply is provided by a district heating system in the first construction phase and in the second construction phase by a heat pump system withdrawing heat from the ground via ground probes. In the second construction phase, heating water with a flow temperatures of 55 °C and potable water with a temperature of 50 °C are provided for the users. In order to supply the dwellings and commercial units with energy in the best possible way, Oventrop dwelling stations of the type “Regudis W-HTF” have been installed in each unit in the first construction phase and “Regudis W-HTE” in the second construction phase. The Regudis “W-HTE” is an electronically controlled heat transmission station. It is the first dwelling station in Germany with a “Sealix” protective layer which significantly reduces corrosion, calcification and fouling in the system. The stations supply heating water and cold potable water to the dwellings and commercial units.

Hot potable water is also supplied by the dwelling station. The cold water is heated with the help of a heat exchanger according to the continuous flow principle. This way, the development of legionella due to stagnating water within the system is avoided. The electronic actuator with integrated potable water temperature control allows for an exact temperature setting with an accuracy of one degree and constant temperatures in the hot water system are guaranteed this way.

Modern comfort through underfloor heating

Within the building complex an underfloor heating system provides a comfortable climate. About 31,000 m of plastic pipe “Copex PE-Xc” were laid on base mats complying with the German Energy Saving Directive. The pipe with oxygen barrier ensures that the floor is heated evenly, so that users can enjoy particular comfort. The Oventrop installation sets “Unibox E BV” maintain the temperature in the individual rooms at a constant level. The residents can individually choose between a room temperature of 7 to 28 °C. The box is barely noticeable. The thermostatic valves is located in a wall box unit. Only a part of the thermostatic head and a white cover is visible. Thus the interior design is not disturbed and the visual appearance is preserved.

In the second construction phase, the dwellings were equipped with outside temperature guided controllers. The Oventrop heating circuit controllers “Regtronic EH” ensure a flexible living climate. The user can define setback periods in two separate weekly programmes. It is also possible to set a holiday mode for a permanent temperature setback over several days.

Location