Herz-Jesu-Kirche, Munich

The church building consists of a rectangular glass box which is 16 metres (52 ft) high, 21 metres (69 ft) wide, and 48 metres (157 ft) long. The glass structure is supported by a steel frame. On special occasions, the front of the glass box can be fully opened as a pair of double-winged doors, reportedly forming the largest set of church doors in the world. When the main doors are closed, access is provided through two smaller doors integrated into the entrance.^[1][6][7]

Within the glass structure stands a second, wooden box that forms the main worship space. The outer glass walls vary from transparent at the front to opaque near the altar. The inner wooden walls are made of slatted maple and oak panels, and the angle at which the slats are positioned also varies from front to back, becoming more open as they approach the altar. Natural light enters through the slats, with its intensity varying according to the position of the sun.^[1][6][7]

Between the walls of the two boxes is a walkway that provides for the stations of the cross. Inside the wooden box, at the front of the church, is a third, concrete box which houses the organ and provides space for an orchestra. Visitors enter the worship space through a low area beneath the organ gallery. Beyond this, the floor slopes down toward the altar.^[1][6][7]

A large, limestone surfaced, square separates the main façade from the tree-lined Lachnerstraße, an otherwise unassuming street. The limestone paving continues into the church without any obvious threshold when the large doors are open. The free-standing campanile stands on the street side of the square, and is a metallic structure measuring 37 metres (121 ft) in height.^[1][7]

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  Square and campanile
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  Doors closed
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  Doors open
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  Space between
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  Interior