Planners said the building had already been altered Dozens of heritage campaigners are upset about plans to demolish a hotel linked to tourism pioneer Thomas Cook.
The Temperance Hotel on Granby Street in Leicester is due to be redeveloped but the Victorian Society want the building saved.
The city council has already agreed to development plans on the site, which was Thomas Cook's first hotel.
People gathered at a statue of Thomas Cook
About 50 people gathered at a statue of Thomas Cook in Leicester to oppose the development plans on Saturday.
Malcolm Elliott of the Leicester Victorian Society said: "It is where Thomas Cook lived with his wife and children for 10 years and where he built up his business and did his philanthropic work and work for temperance."
He said the building would be "a pile of rubble" unless the developers changed their minds.
The council has said the historic significance of the Thomas Cook Hotel, built in 1853, will be marked by a blue plaque.
Thomas Cook began his international travel company in 1841, with a one-day rail excursion at a shilling a head from Leicester to Loughborough.
The council said the building has been significantly altered with the lower two floors of the building being changed from the original design.
Courtesy: BBC News