Shoalhaven City Council senior development planner Peter Johnston fended off questions from concerned residents over the proposed Pitman Avenue development.

Several questions from residents at the community forum were concerning the intersection between the Princes Highway and Pitman Avenue.

According to traffic impact assessment submitted by the developer, between 2012-16 there had been eight accidents within 400 metres of the intersection, including one fatal and two "moderate injury" accidents.

Peter Johnston was unable to answer many residents' concerns about the intersection though and said it was the RMS and State Government's responsibility.

Mr Johnston said the decision over the intersection lied with the RMS and encouraged the community to make submissions about the development and contact RMS of they were concerned.

"We won't hear back for two weeks," he said.

The proposed development is a 49-lot manufactured home estate. A manufactured home is essentially a self-contained dwelling built off-site and trucked into place. Residents purchase the manufactured home, but lease the land from the park owner.

Individual lot sizes in the proposal will range between 177m2 to 207m2. A community centre, tennis court and bowling green will also be constructed.

Mayor Amanda Findley, who was also grilled by the forum over the development, proposed to move a motion at the Development and Environmental Committee on Tuesday to extend the submission period for the development and make RMS aware of the history of the Pitman Avenue intersection.

At the meeting the Milton Meadows Estate and Ilett Street Aged Care facility were also discussed.