New housing estates in Spring Farm, Elderslie and Mount Annan, as well as the growth centres at Oran Park and Gregory Hills will add significantly to the region's population during the next few years as more land is sold and more houses are built.

Camden Council development and environment director Sue Morris said the first-home owners' grant had accelerated growth in the new developments.

``There were a lot of blocks sold and a lot of houses approved when the first-home owners' grant was introduced,'' she said.

``We haven't seen a downturn since.''

The council's data shows the new developments at Elderslie will eventually have 2000 houses while Spring Farm will have 4000 houses.

Mrs Morris said the council approved 614 homes in 2009, each with an average of three people per house.

However, infrastructure might not be able to keep up with the influx of new residents, Mrs Morris said, citing the small size of Camden Council and limited funds as an impediment.

``You can't provide more accommodation without also providing the necessary major infrastructure such as road networks and public transport,'' she said.

``We are constantly reminding the state government that it needs to provide employment that suits the demographic of the community to ensure there are white-collar jobs as well as blue-collar jobs and factories.''

Mrs Morris said the projected boom in the area's population during the next 20 to 30 years magnified these concerns. She said a big challenge facing Camden Council was how to preserve the town's much-loved country feel while the surrounding areas were becoming suburbia.

``We are a really small council and we don't have the rates and services or the staff to cover everything,'' she said. ``We are a small council with big expectations.''