A string of helium-filled balloons was set aloft Tuesday as part of a demonstration expressing concern about a proposed development in Regina's Cathedral neighbourhood.

Some residents have expressed opposition to the planned four-storey building on the corner of 13th Avenue and Elphinstone Street. The development would include shops and businesses on the street level and condominium apartments above.

People in Regina's Cathedral neighbourhood used balloons to demonstrate how a new development would compare in size. 0:40

The balloons rose to about the same height as the proposed development.

"It's hard to imagine what four storeys is really like," Barbara Kahan, one of the people involved in the demonstration, said. "When you see it in real life it is very, very tall. So we thought this would be a simple and fun way to just really dramatically illustrate how tall four storeys really is — especially in comparison to everything around it."

The proposed development in on the agenda for the next Regina City Council meeting, set for July 25.