Another park has been taken off Blacktown Council's list of small reserves earmarked for sale.
A community campaign convinced councillors to take Reserve 477 in Cowper Circle, Quakers Hill, off the list, which has been cut from 33 to 29 since July.
Liberal councillors had previously said small reserves that were well used wouldn't be sold.
Cowper Circle resident Ian Schoonwater made a passionate plea at last Wednesday's meeting.
"For three decades this park has played an important part in the community and is still in regular use today," he told the council.
"It's a safe place for kids to play their ball games and fly kites. In an age of childhood obesity we need this open space for the kids. It's well grassed, has healthy trees and is used as a short cut from surrounding streets to the station."
Mr Schoonwater told the Sun he had no idea the reserve to his home was under threat until he saw a Channel Ten news report a month ago about the council's plans to sell off small reserves.
After seeking advice from Labor councillor Alan Pendleton, he collected 84 petitions from Cowper Circle and two surrounding streets to save the reserve.
"Everyone was shocked when they heard because no one knew about it before that," Mr Schoonwater said.
"Who knows what would have happened had the park been given to developers? I'm relieved and very pleased. Kids in this vicinity can use the park and not have to travel elsewhere to play."
Mr Schoonwater believed well-used parks should be returned to their neighbourhoods and advised other affected residents who had small reserves nearby: "Speak up and tell the council these parks are an important part of the community. It's important to have open spaces readily accessible to all families."
Money raised by selling small reserves to developers will go towards building a "mega park" in each of the five wards.