Silbergasse 3–9 apartment house, Residential complex in New City South, Bienne, Switzerland

The Silbergasse 3–9 apartment house is a four-part row of flats built 1941–1943 in the Bieler Moderne style, its plastered facade following the curve of the street. Window bands and horizontal layers run unbroken across the fronts, and the fifth floor steps back behind an attic and flat roof. Instead of balconies, loggias are cut into the facade, their openings matching the window format.

The four houses at Silbergasse 3, 5, 7 and 9 were built between 1941 and 1943, more than ten years after the special building regulations for the station quarter were issued. Their construction followed the international New Building movement, the Social Democrats' 1921 election victory in Biel under mayor Guido Müller, the city's expansion through incorporations, and the free land left after the railway station was relocated. Buildings 7 and 9 have been protected by contract since 4 April 2016.

The houses were built in the style of the "Bieler Moderne", the local variant of Neues Bauen. The name Silbergasse (Silver Lane) is a reminder of the street's past, while the uniform plastered facades with continuous window bands and recessed loggias show how the city's building regulations shaped the station quarter. The communal entrances, staircases and foyers survive largely from the construction period, with details in aluminium, chrome steel, artificial stone and wood.

The block follows the curve of Silbergasse, and the entrances to numbers 5 and 9 also lead through to the inner courtyard of the block. Opposite the mouth of Thomas-Wyttenbach-Strasse the facade rises to five storeys, marked by a flagpole; further along, the fifth floor steps back behind an attic and flat roof, and a sixth floor facing the courtyard is not visible from the street.

The stairwells of numbers 5 and 9 lead through to the inner courtyard of the block, a passage residents use daily. The fifth floor steps back behind an attic and flat roof, so from the street the building reads as lower than it is; a sixth floor, invisible from the road, faces the courtyard.