Local civic association, the Portsmouth Society, is concerned planners will give Broadway Malyan's 30-storey Gun Wharf development the green light 'because they do not feel strong enough to refuse it'.
The Portsmouth Society has already demanded that the Government Office for the South East should call in the mixed-use retail and residential scheme, even though it has yet to win planning permission.
The society's secretary, Roger James, is also campaigning for the South East England Development Agency to review the project's design as another tool to help 'defeat the scheme'.
James said he believed the plans would 'ruin Portsmouth's harbour front' and condemned the 'massing and detail', of the two tower blocks.
Will Lingard, SEEDA design panel manager, has agreed to carry out a design review, but 'only if CABE does not intend to comment on it'.