The council removed one of the planter boxes, nearest to Frederick St, after residents raised concerns but did not plan to remove any more.

Related: Residents raise traffic safety concerns on tree planters

Councillor Matthew Brooks put forward a motion on Monday to remove the remaining six concrete planters, but despite four councillors voting for the motion, it was lost.

The planters were approved as part of the council's development application for 10 Norfolk St to subdivide the block, but Cr Brooks said councillors were not briefed on them being part of the DA.

"I believe we have made a huge mistake here," he said.

"They do make the street unsafe.

"My phone has never run so hot, regarding the inconvenience of [residents] waking up one morning to see these things going in was a bit of shock, it does narrow the street up and parking is going to be a problem."

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The council's general manager Des Jennings said a typical cross section was used in the DA as a guide and despite the increased size of the planters from the plans, they met engineering requirements.

"What we put out [in the DA] was a typical cross section, that wasn't set," he said.

"So that was just a typical cross section to show the council ... what it could look like."

Cr Michael Polley and Cr Janet Lambert said more trees were needed as they were a benefit to the environment.

"If I had the opportunity to have trees planted in front of my house in Devon Hills I would absolutely be putting my hand up," Cr Lambert said.

Cr Jan Davis said she agreed more trees should be planted in the municipality but it did not mean they had to be built into "huge incursions" into the street.

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