A court ruling that a farmers' market in an Adelaide car park is effectively a shopping centre under planning laws might have wider implications for small ventures, the Greens have said.

Key points: Greens say a technical argument was put to the court

Greens say a technical argument was put to the court Party urges Parliament to look at 'red tape' implications

Party urges Parliament to look at 'red tape' implications Showgrounds weekend market expects to be unaffected

The Environment and Development Court ruled this week a group of pop-up fresh produce stalls in the Salisbury Council area in northern Adelaide had wrongly been granted approval by the local council, after a nearby shop operator complained.

"If we accept that a trestle table selling stuff is a shop then every kindy cake stall, every garage sale could be affected," Greens leader Mark Parnell told 891 ABC Adelaide.

"It was really a technical legal argument about whether a trestle table and a little gazebo, free standing, is the equivalent to a shop for the purpose of planning laws."

Mr Parnell said State Parliament should now consider whether the court ruling was what was intended when state planning laws were drawn up.

"Do we want that level of red tape over what might be small community ventures?" he said.

Markets will open this weekend

Market operator Mark Aldridge said he still planned to open this weekend as the venture had not been served with any official notice.

"The problem here is not me, without that market the [food] producers go broke overnight," he said.

Mr Aldridge said plans were being made for a legal appeal, but a first step might be for the car park market to consider what it needed to do to comply with any council notice.

Local Government Association president Dave Burgess doubted the ruling would affect future farmers' market applications in other council areas.

"Each council would have different rules and they would have to be assessed under those rules," he said.

Mr Burgess said a previous issue with the operation of roadside produce stalls in the state's Riverland had been worked out harmoniously with the State Government and he hoped a "common sense" outcome could be reached on the latest issue.

A popular weekend produce market is held in the Adelaide Showgrounds at Wayville on Sunday mornings, but official Elaine Ratcliffe said she did not believe the court ruling would put it at any risk.

"In fact we have just received the planning approval for a new farmers' market we're opening in Gawler, which is starting next Saturday," she said.

She said it would be in the car park of the visitor information centre and approval had been given by the local council to ensure the car park would be appropriately classified as a shop zone for the brief times the outdoor market operated.