‘‘It’s a great asset, but it’s none-core to our strategy,’’ a Mirvac spokeswoman said.

‘‘We’ve had approaches from various people, so we decided to put it to market.’’

Friends of Belmont Airport convenor Chris Osborne said potential buyers should be ‘‘fully aware of the council’s and community’s desire for the site to remain an airport’’.

The council zoned the site for an airport in its draft zoning plan, which would allow an airport or health, education and community infrastructure with consent.

The council’s existing zoning plan for the site allowed a range of uses with consent such as an airport, child-care centre, school, entertainment centre, hospital, hotel or motel, medical centre, church and restaurant.

Mirvac paid about $5 million for the airport site in 2007.

Central Coast Aero Club had planned to transfer its first right of refusal to buy Warnervale Airport to Mirvac, so it could develop light industry on the land.

That deal was to involve Mirvac letting the aero club shift its operations to Belmont, but agreement was not reached.

The council previously rejected applications for Belmont Airport to be rezoning for housing.