He designed many train stations, many now demolished, a zoo, public buildings such as theatres, as well as residences, interiors and furniture.
Apart from his job for the Dutch railways, he ran his own agency, designing residences, including his own family's in Utrecht, and furniture, experimenting with a curvaceous style not as focused on functionalism.
Sybold van Ravesteyn designed the entire Diergaarde Blijdorp zoo (1937–1940), a project he called his life's work.
He also designed the interior of the royal yacht Piet Hein (1937), offered as a wedding gift to Juliana and Bernhard.
[1] Sybold van Ravesteyn died 23 November 1983 in the Rosa Spier Huis retirement home in Laren.