GlaxoSmithKline is selling a chunk of land beside the prominent Boronia site held for years as its national headquarters.
The 7.32 hectare tract, Lot A, 1061 Mountain Highway, should trade for $7.5-$8 million.
It is expected to attract interest from developers which may subdivide and on-sell the land, or replace it with a business park investment.
The property has frontage to Colchester Road and Kalman Drive.
Jones Lang LaSalle’s David Butera and Andrew O’Connell are the agents.
GSK will continue to occupy a manufacturing plant next door.
It recently started moving staff to a new headquarters at inner east Abbotsford.