Friedrich-Wilhelm-Straße 18, Canadian Embassy in Gronau, Bonn, Germany

Friedrich-Wilhelm-Straße 18 is an embassy building with clean geometric forms and expansive windows spanning multiple floors. The structure displays a functional design language typical of administrative buildings from this era.

Canada accredited a mission to Bonn in December 1949, first housed at Zitelmannstrasse 14 and later at number 22. The chancery at Friedrich-Wilhelm-Strasse 18 was built from 1967 to 1969 to designs by Montreal firm Bolton, Ellwood & Aimers. The embassy moved to Berlin in 1999, and the building was sold, converted into offices and renamed Kanadahaus.

The building is known as the "Kanadahaus", a name given after the embassy moved to Berlin in 1999. From 2001 to 2002 it was converted into offices, and since 2010/11 it has housed departments of Deutsche Post AG; until early 2022 it was also the seat of the market research institute Infas.

The former chancery stands at Friedrich-Wilhelm-Straße 18, corner of Johanniterstraße, in the Gronau district on the edge of the Johanniter quarter, not in the city centre. The site is now the "Kanadahaus" office building, so there is no embassy reception; since 2010/11 it has housed departments of Deutsche Post AG.

The 2001/02 conversion, costing around 30 million D-Marks, added a five-storey glass elliptical annex on the east side and a recessed top floor, giving the complex 4,700 m² of office space. The building was renamed "Kanadahaus" and housed the Infas research institute until early 2022.