The extension to the German Hospital in Dalston was carried out to account for an increased demand for beds after the First World War. Burnet, Tait and Lorne were allowed an unprecedented level of creative freedom and the result is this wonderful example of an uncompromising mid-century style.

It is widely believed that the most significant architectural influence for the building was Alvar Aalto's Tuberculosis Sanatorium at Paimio in Finland. Aalto is renowned for his approach to buildings as 'Gesamtkunstwerks' or total works of art; Aalto would design every element down to the door handles and handrails, so that the entire space would cohere to his vision.

The German Hospital closed in 1987 and the building was awarded a Grade II listing one year later, in recognition of its external features (Crittal windows, concrete awnings and brickwork). It remained vacant until 1998, when it was converted into residential apartments. Fortunately, many of the original fittings and fixtures in the communal areas were preserved.

From Fassett Square, the prevailing impression is of the aqua-marine Crittal windows and a rather large concrete canopy over the entrance way. A further influence of Aalto, who was widely considered a master of brickwork, can be seen in the sand lime bricks, created by the Ryarsh Brick and Sand Company, which are laid in a bond of two stretchers to one header, a signature configuration in the work of Burnet, Tait and Lorne.