A public meeting has been called as the Keep Whitstable Different campaign group steps up its protest against the Gladstone Road Post Office redevelopment.
The group has already handed over a 2,000 signature petition to Canterbury City Council in a bid to show the level of anger against Wisprole Investments' development plans.
If given the green light, the London-based company will demolish the existing building and replace them with 12 flats, a new post office and an additional retail unit.
At the meeting, to be held at the Methodist Hall in Argyle Road on Monday, members of the public will also be asked about their visions for Whitstable and how they want the town to develop.
Other local interest groups such as Harbour Watch and the Transition Town group, will be represented at the meeting.
"Whether a resident or a visitor, everyone we've spoken to about this appalling plan has been completely opposed to it, seeing it as a threat to all that is distinctive about the town," said organiser of the Keep Whitstable Different Group, Mary-Jane Higginson.
"The overwhelming number of letters to Canterbury City Council raising objections is testament to that but we need all the support we can get and we hope this meeting will generate even more.
"We are not against new developments, just those that are unnecessary and detrimental to the town."
Guy Voizey, who also helps to organise the group added: "The campaign has struck a real chord with many people.
"They recognise that this is an opportunity not simply to oppose something they don't want but also to put forward a vision for the town that they do want, a vision that is distinctive and strong and sustainable in an uncertain future."
The deadline for public comments on the redevelopment was August 14 and Canterbury City Council has yet to arrange a date to discuss the plans further.