Butterfly Karlín, Modern commercial building in Karlín, Czech Republic

Butterfly Karlín, also called AFI Karlín, is an office complex in Karlín, Prague 8, made of two six-storey buildings with rounded forms that resemble butterfly wings from above. Both facade and roof are green, and the complex holds 23,000 square metres of lettable space. It was designed by the Czech studio CMC Architects and completed in 2018.

The building was completed in 2018 and stands on former industrial land that marked Karlín's transformation from manufacturing to a contemporary urban space. This development was part of the district's larger shift from its industrial past toward modern urban functions.

The name Butterfly comes from the ground plan: two six-storey wings curve like butterfly wings when seen from above. The complex, also called AFI Karlín, was designed by the Czech studio CMC Architects and finished in 2018 for the developer AFI EUROPE, with an investment above 45 million euros.

Butterfly Karlín stands in Karlín, Prague 8, at coordinates 50.09198, 14.45805, and can be reached on foot from the surrounding streets of the district. The complex consists of two six-storey buildings with 23,000 square metres of lettable office space, so the interiors are working offices rather than public rooms. Visitors mainly see the rounded green facade and roof from outside.

The two six-storey buildings are shaped so that from above they resemble butterfly wings, which gave the complex its name. The green facade and roof support the BREEAM Excellent certificate for energy efficiency and sustainability. The Czech studio CMC Architects designed the project, and developer AFI EUROPE invested over 45 million euros.