The majority of those who responded to a recent survey on plans for the Cosy Nook cafe are against the development.
Of the 879 people who responded to the survey from Rushen Heritage Trust (RHT), 63 per cent were against the plans, 33 per cent were in favour and four per cent indifferent.
35 per cent of those who took part were Port Erin residents.
Plans for the site were put forward by Port Erin Commissioners in March, with proposals to remove the existing building, and replace it with a larger, raised facility, which includes access ramps to the beach.
RHT says amongst the main concerns raised about the project are a loss of Manx character and the need to preserve heritage, the new building being too large as well as parking and congestions problems.
However, among those who support the idea, many considered the plans to be exciting and forward-looking, praising the Commissioners for moving with the times and showing vision.
Chair of the trust, Hugh Davidson, says: " With 63% voting against the new plans, it is a decisive result and, as such, the Trust is therefore submitting an objection to the Planning Committee.
"We are recommending that the new-look Cosy Nook should be a building with traditional Manx cottage style frontage, which fits the heritage setting of St Catherine’s Terrace, and links with the cosy, charming, informal characteristics of the Cosy Nook.
"Of course, we recognize that the substantial minority who favoured the application also had strong views, sincerely held, and courteously expressed, and appreciate their participation in the poll. We also respect the motivations of Port Erin Commissioners in submitting the planning application."