In response, Napier Mayor Bill Dalton said the council dealt with "a number of issues concurrently", of which erosion was one.
When Mr Dallimore was asked why, as a councillor, he did not put the issue on the agenda he said he was waiting for a council-commissioned report into the erosion to be finalised.
"The intention is to get it on the agenda ... but it's hard to go forward without the Cowell report."
This report authored by the University of Sydney's Dr Peter Cowell was commissioned in 2011, he said. A draft report was received last year, but there is no expected date for its completion.
Mr Dalton confirmed the council were waiting for Dr Cowell's report which had been commissioned by the council's former chief executive Neil Taylor.
"Dr Cowell has had issues of a private nature which prohibited him from completing his report but has assured us that it will be with us soon," he said.
Mr Dallimore believed this report would show the erosion of Westshore was not natural, but that the breakwater of Napier Port meant sand "dropped" in the shipping channel, and was not able to reach, and replenish Westshore.
In the near future Napier Port will be applying for resource consent to build a new wharf.
As time was of the essence, Mr Dallimore is now supporting fellow Westshore resident Richard Karn's efforts to compile a report on the beach's deterioration.
Mr Karn said he had about 40 years' engineering experience - including as a research engineer for Team New Zealand for the America's Cup.
It was hoped this report, along with the Cowell report, could mean traction was gained on solving the issue.
Mr Karn had been working on his report for "quite some time", by gathering technical evidence of the erosion.
"But what's missing is a pictorial study of what Westshore has looked like over time," he said.
To complete the report, he is now appealing to the public for pictures of the beach to map the changes over time.
When it was finished, Mr Karn hoped the report would be presented to either Napier City Council or Hawke's Bay Regional Council - because they own the port.
Last year the Napier City Council was issued with consents for a new coastal protection structure at Westshore beach.
The existing seawall at Whakarire Ave, built in 1994, was not considered robust enough as a long-term structure to protect the area. It was hoped construction on the new protection would begin early this year.
There is also a cross-council effort to address rising sea change - the Clifton to Tangoio Coastal Hazards Strategy 2120.
Earlier this year two community based panels were formed to look for long-term local solutions to the challenges posed by climate change.