After Indonesia's independence, Andjar moved to Purwokerto to lead the daily Perdjoeangan Rakjat.
He was a town planning consultant for Semarang (1916–20, 1936), Buitenzorg (now 'Bogor') (1920–23), Madiun (1929), Malang (1930–35), Batavia (Jakarta) (1936–37), Magelang (1937–38), Bandung (1941), as well as Cirebon, Meester Cornelis (part of Jakarta which is known as Jatinegara), Yogyakarta, Surakarta, Purwokerto, Padang, Medan and Banjarmasin.