In 1763, Governor Hans Henrik Böje rented a plot of land from the city of Helsinki bordered by Hämeen maantie (nowadays Siltasaarenkatu) and started a garden on it. In 1773, control of the garden was handed over to gardener Erik Edbom. When Helsinki became the capital in 1812, the garden became a municipal garden. Later on, in 1827, work on transforming the garden into a walking area for the denizens of Helsinki commenced according to plans drawn up by Carl Ludvig Engel. His plans divided the park into two distinct areas: a symmetrical, tree-lined park and a landscaped garden formed by winding paths. In 1829, the walking area was pared back once the Imperial Academy of Turku Botanical Garden moved next to it after the Great Fire hit Turku and the Imperial Academy relocated to Helsinki.