The Shakepeare Birthplace Trust has confirmed its opposition to selling land near to Anne Hathaway's cottage.
Developers, Bloor Homes, want the land for housing.
Earlier this year Communities Secretary Eric Pickles gave permission for the deal to go through.
Residents and the council are also against the proposals but the Trust says it can't rule out being forced to sell.
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There are a number of school closures across the Midlands today. Parents are advised to contact schools directly if they are unsure.
Many took to the winter weather with one aim - to build the biggest snow creation!
All schools run by Birmingham City Council are closed tomorrow (Monday) because of the heavy snowfall.