Campaigners in favour of moving Oldfield Primary School to a field off Bray Road are set to march with their petition from the school to Maidenhead Town Hall.
The Oldfield Action Group has collected 800 signatures lobbying for the move.
At 3.30pm on Monday the group will walk from the school to the town hall, where the petition will be received by the chairman of the Maidenhead development panel, Cllr Derek Wilson (Con, Oldfield).
Opponents say the move is inappropriate as it requires building on greenbelt and floodplain land.
The Royal Borough will make a decision on the move when its Maidenhead development panel meets on December 11.
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