The owners of 'Rainham', circa 1830, were furious that Bathurst Regional Council never notified them that a development application had been received to build the shed near their Vale Road property.

They took their concerns to a public forum at council's ordinary meeting last week, a month after the DA was approved.

Council's director of Environmental Planning and Building Services, Neil Southorn, said as the construction certificate had been issued, it was not possible to rescind approval.

"The notice of determination and construction certificate have been issued so it is not possible to reconsider the application," he said.

"Further, it should be recognised that the points raised by the owners of Rainham may not have altered council's decision."

ALSO MAKING NEWS: Bathurst pursuit: Police cleared of wrongdoing in fatal crash during 62 second pursuit

When asked why the owners of Rainham weren't notified, given the property's significance, Mr Southorn said the proposal for the farm shed "did not trigger formal notification under council's Development Control Plan".

Although the owners weren't notified, all DAs are publicly available on council's DA Tracker webpage, and council did consider heritage prior to this particular DA being approved.

"It is acknowledged that there is a heritage item near the site of the shed, however council staff considered the impact to be minimal because the shed is located on the opposite side of Vale Road behind a row of mature trees," Mr Southorn said.

"In addition, the location of the shed needed to be on flood free land with suitable truck access from the Vale Road and avoiding a sewer pipe close by.

"These factors had an influence on council's decision."

The owners of Rainham have said that building this shed in the location proposed in the DA would adversely impact the rural views from both the house and garden, which are heritage listed.