In 1920, a tightly-populated community was founded from the suburban area according to a zoning plan made by Lars Sonck.

The suburban settlement also spread to the north of the station, where the Harakka area was founded, now known as the district of Lintuvaara.

[3] Traffic arrangements at the Leppävaara railway station were changed in 1965, when a rapidly trafficked local road was drawn over the tracks via an overpass bridge; the Ring I beltway currently runs at the site.

The station area started to become a population centre, where a modern Maxi-Market store was opened in 1972.

[3] The Sello shopping centre has brought more traffic to the station since late 2002,[citation needed] the latter part having been completed in autumn 2005.