The site is located in Munich, at the Karl-Marx Str. 75-83, with the staircases facing north
The original task was to create an extension of the existing house, with a common entrance through the staircases
Connection study
Since the existing building did not have a barrier free vertical connection, the lifts were accessible in between the floors, and the floor heights were 2.3m, it was decided to break free from the existing vertical grid and have larger celing heights.
Several different floor heights were tried, in order to find the most appropriate one.
The last one was selected for two main reasons:
- comfortable yet not very tall floor height: 2.85m
- barrier-free connection on the 6th floor for the access to the common room
The extension consists of three buildings, connected to every second staircase.
The buildings are built using cross-wall construction, with the bearing rammed earth walls are stretching from east to west. The facades are then mounted in between those massive clay walls.
The ground floor consists of two parts:
- communal areas with bike-parking and trash room
- public space with a flexible plan, suitable for different functions like a café, workshop, youth-room etc
1-5 upper floors
Those are the regular floors with three different typologies of 2-, 3- and 4-room apartments, connected by the external corridor.
Those are the regular floors with three different typologies of 2-, 3- and 4-room apartments, connected by the external corridor.
The original building gets also an extension in the form of dining room, open to the kitchen and a balcony, accessible from the bedroom.
6th floor
The last floor is similar to the regular ones, but the most northern apartment is substituted by a common room with a big terrace, also for use by the dwellers of this house, including the existing building.
The bearing walls are planned as rammed earth
in order to reduce pressure, the walls on the inside get thinner every floor
Main refference - Steel House Case Study by Boltshauser Architects
section
section
west elevation
north elevation
north elevation/ section
three-board projection
The ground floor is significantly higher, enabling a gallery space in the public areas
Possible considerations for facade-elements
The goal was to create a self bearing facade, also carrying the balconies and external corridor.
The option with steel two profiles was selected
axonometrie
1:20 modell faćade
1:20 Modell inside space
Modell 1:200
