Dún Laoghaire-Rathdown County Council has received almost 650 submissions opposing its plans to redevelop the site of the former baths.
However, some 138 submissions have been made in support of the plans to build 180 apartments, coffee bars, restaurants, a waterworld and indoor leisure complex, a 25m pool, seaweed baths and other leisure and sports facilities along the seafront.
A 10-storey glass "lighthouse" with a viewing platform and the reclamation of 5.5 acres of foreshore for a maritime park is also proposed.
With county councillors to decide in October whether to go ahead with the controversial scheme, members of the Save Our Seafront campaign are planning further protests against the proposal next month.
Councillors have also asked the manager, Derek Brady, to examine the possibility of building the residential component of the scheme elsewhere in the council area.
Mr Brady has amended the original plan by offering to remove the social and affordable element of the housing to an alternative location. He has said doing so would mean more social and affordable houses could be built.
The manager's analysis of the submissions found that the main reasons for opposing the scheme were its scale and bulk; the location of private development on the seashore; interference with views; and its impact on traffic.
Some 205 submissions opposed the scale and bulk of the proposed development but expressed support for the park and public elements.
Green Party councillor Kealin Ireland last night accused the manager of ignoring the wishes of local people.
"The manager cannot choose to do nothing in the face of such overwhelming opposition to the project."