So it is no surprise the response is often "I'll believe it when I see it".

But the demolition of six homes on Kangaroo Valley Road, some that were family homes for decades, has confirmed to Berry locals that the bypass is on its way.

There is one house however, that has escaped the team of demolition men.

A Federation cottage on North Street known as Glen Devon is in the process of being relocated about 400 metres west.

Kiama MP Gareth Ward said the new location would maintain the original setting of the cottage, sharing a boundary with Miller's dairy farm and retaining views of farmland and the nearby escarpment.

Mr Ward said its relocation would help preserve some of Berry's history, with the RMS planning to sell the cottage at auction next year.

On Monday, Roads Minister Duncan Gay inspected some of the preliminary works for the $580 million Foxground and Berry bypass project.

A new site office that will be the base for more than 100 workers is being established on Woodhill Mountain Road and will be operational on December 1.

The temporary office will house Roads and Maritime Services staff and Fulton Hogan contractors until 2018.

Mr Gay said construction work on the highway is expected to start by the end of January, 2015.

The 11.6-kilometre project has been divided into three stages, with work to be carried out concurrently on the three sections.

The first section involves a deep cutting at the northern end of the project near Foxground, but away from the existing highway, with rock from the cutting to be used throughout the project.

The second section will be upgrade works on the highway around Broughton Village, while the third section involves the construction of the roadway and bridges needed to bypass the Berry township.

Meanwhile, Mr Gay said RMS was still working on a solution to avoid the extensive traffic problems experienced at the Kiama bends during recent holiday seasons that has led to traffic queues of 12 kilometres and gridlock in the Kiama area.

"We still have a month and a half until [Christmas] so we will see what we can deliver then," Mr Gay said.

He said construction on the $329 million Gerringong upgrade was on track to be completeddone by mid-2015.

A flyover of the bypass can be seen here.