They will pressure the party to include proposals for a local government finance review and a pledge to return business rate to councils.
A source close to the policy forum said: 'We want to take control back to councils. Local government should not be seen as merely an agent of central policy.'
The finance pledges are among around 90 amendments by councillors to the party's environment, transport and the regions consultation document.
The document also hints at the party's future policy direction on local government: 'Labour has brought in new structures to achieve our goals at local and regional level. It is now time to focus on standards of service delivery rather than structures.'