Dutch architect. He learned architecture and draughtsmanship from his father, Jan van der Hart, and became an architect specialized in Neoclassicism He built the Hodshon Huis and Barnaart Huis in Haarlem. In Amsterdam, he built the theatre De Kleine Komedie and redesigned the Trippenhuis in 1815-1817 to house an art and print cabinet that later merged with the Rijksmuseum. He was member of the Royal Institute, predecessor to the Royal Netherlands Academy of Arts and Sciences, since 1808. //