The announcement of a zone for a new public “super-school” in Melbourne’s south-east is predicted to cause a property bubble as panicked parents rush to secure places for their children.

At a recent meeting for the 2018 opening of the $20 million Beaumaris Secondary College a map of the initial zone boundary was revealed and showed that many local children may miss out on a place.

Many upset residents in nearby Black Rock and Cheltenham, whose homes just miss out on the boundary map, say the zone is smaller than expected and may prompt them to buy or rent within the zone.

They are also confused why the zone covers several golf courses.

Michael Cooney, director of Hodges Group and manager of the Beaumaris office, says homes inside the new zone are now likely to increase by 20 per cent.

“People are very keen to get into the zone as this school is going to be above and beyond the average public high school,” he said.

The school, being built for 650 students, is replacing the rundown Sandringham College third campus on the corner of Balcombe and Reserve Roads. It has already faced protests and controversy when locals discovered plans to remove 200 trees from the site during the building process.

Prompting excitement from local families and children, the MCG will contribute two ovals and a multi-purpose pitch.

Mr Cooney said while families may be keen to move into the zone to secure places for their children at the school, the real estate is out of reach for many.

“The entry level for a family home is on average around 1.4 million,” he said.

While some families may hope to buy an investment unit in the zone, as an answer to winning a place for their child, that plan may not work with a shortage of units in the area.

Mr Cooney believes property in Beaumaris may soon see a noticeable spike in prices in the same way as homes have increased in the zones for McKinnon Secondary College and Brighton Secondary College.

Local parents have been told their children may still get into the new school if places are not filled by children from within the zone.

But many who campaigned for years to have the new high school have flooded social media sites and have written to the Department of Education voicing their concerns over the zone.

Penny Stewart, hoped her youngest children Matthew, aged 10 and Maddie aged 8, would attend the new school in the future but their street in Black Rock is not in the current zone.

“I have been supporting this project all along so it seems ridiculous,” Mrs Stewart said, “I presumed any children who went to Black Rock Primary would get a place.”

Sophie Brown, who has two children at Black Rock Primary School, said the family would consider renting quite soon in the zone if it means securing a place.

“Until the meeting we were feeling pretty secure in the fact our eldest son would be starting at Beaumaris next year,” she said.

“Now that’s been thrown into turmoil and it’s causing quite a lot of stress in the household. Our son is quite upset about it as he wants to go to High School with his friends next year.”

A spokeswoman for the Department of Education says there is still a chance the boundary will change.

“The map given out at the information evening was indicative and the Department is currently finalising the exact boundary for Beaumaris Secondary College.”