A call for community support for Furze Platt Senior School has been made by Maidenhead North Action Group (MNAG).
The group was set up to oppose the Spencers Farm scheme and collected 2,342 signatures against the plans.
It has welcomed news that the idea has now been dropped.
Speaking on behalf of MNAG, chairman Irene Perrin said: "It is now time for parents, prospective parents and residents to support the senior school in its current location, provided the school and its governors are prepared to be more open and transparent in their decisions that affect local residents and the community as a whole."
She said the group's fight to protect the greenbelt at Spencers Farm would continue.
Furze Platt headteacher Tanya White has re-emphasised the commitment of its leadership team and governors to making the school even better.
"We will not waver in our determination to do everything we can to provide our young people with an excellent educational experience," she added.
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