The Blisset Group's "Anthem" would include one and two-bedroom assisted living apartments, a 60-place residential aged care facility and a 16-place residential dementia care service, on a site between Retford Road and Stephens Park.

The Retford Road Action Group considers the proposal an over-development of the residentially zoned site.

"This development will have lifestyle impact on residents in all the surrounding streets, not just Retford Road," the Retford Action Group said in a letter to all Wingecarribee Shire councillors.

"It will have an impact on the club users of Stephens Park, re weekend and night-time training and games, and it will have an impact on the current aged care providers in the district, which are experiencing staff recruitment and retention difficulties."

The group's objections include:

* The proposed two-storey dwellings are unsuitable for elderly people;

* The development will include an educational facility;

* "Anthem" will create traffic and parking problems during construction and after it is complete.

Action group member Vivienne Stephens-Reicher said meetings with Matthew Blissett of The Blissett Group and with Deputy Mayor Nick Campbell-Jones and council's Environment and Planning officer Ray Darney had not allayed residents' concerns.

The action group wants council to inform all affected parties of the development plans, order an Environmental Impact Study into the development and investigate the project's suitability for older people.

But Mr Blissett said the action group was misinformed about the development.

Mr Blissett said as the developer of Henley Brae he had become aware of the need for facilities which allowed people to move progressively from independent living to higher levels of aged care.

"Anthem" had taken almost three years to design and exceeded the requirements of statutory planning guidelines in all areas, he said.