Wollondilly Council is seeking community feedback on its proposed Government Services Building.
The new building will form a part of the future Wollondilly Community, Cultural and Civic Precinct.
However, some residents have taken to social media to raise concerns about the council's plan to increase the building height control for the site from nine metres to 16 metres.
Wollondilly mayor Robert Khan said the project would deliver contemporary community and cultural facilities for the wider Wollondilly community and support local jobs.
"Together with the Performing Arts Centre, new library, cultural facilities, child care, and village green, the Government Services Building is an investment in Picton to maintain it as the civic and cultural centre of Wollondilly, bringing jobs to the area and supporting local businesses," he said.
"We envisage it being home to government services such as Services NSW or government departments, as well as housing council offices.
"Raising the potential height of the building by seven metres will allow a smaller building footprint, preserving more land for other parts of the precinct such as the Village Green, Library, Performing Arts Centre and car parking."
Wollondilly Council is both the owner of the site and the proponent for the Planning Proposal.
The council has engaged Keylan Consulting to provide an independent assessment of the proposal.
Cr Khan said the council was focused on building a "higher performing council to serve our growing community".
"Unfortunately, the current council administration building is too costly to maintain due to its age as well as undersized for our existing staffing levels, and council is planning a new modern building as well as a new operational depot to improve workforce productivity and conditions," he said.
"The Planning Proposal has been on exhibition since June 15 and we encourage community feedback."
Planning proposal considerations include parking and traffic, heritage, utilities, stormwater and flooding.