Karel Koželka was a Czech architect, urban planner and designer.
He studied at the the Academy of Arts, Architecture and Design in Prague (UMPRUM – Vysoká škola uměleckoprůmyslová v Praze) in the architecture studio of Pavel Janák and graduated in 1933.
After his studies he joined the Union of Czechoslovak Works (Svaz československého díla -SČSD), where he worked as a commissioner until 1948.
He devoted himself as well to theoretical work and published articles related to home furniture, especially sofas.
He then became the secretary and subsequently the head of the Enhancement Department of the Center for Folk Art Production (Ústředí lidové umělecké výroby – ÚLUV).
In 1955 he became the director of Cooperative Works (Družstevní práci).
In 1944, together with Antonín Kropáček, he designed a set of two armchairs and a round table for the České umkeškej dílny, which won a silver medal at the Milan Triennale in 1946.
The set was designed in 1944 for the Czech Art Workshops (České umělecké dílny).
He is the author of a minimalist wooden summer cottage, which was used as a model by the Association of Czech Works.
He designed it in collaboration with the architect Luďek Kubes in 1941.