The ibis Styles Port Stephens Salamander Shores hotel at Soldiers Point was placed on the market in June.

Expressions of interest are open until July 10.

The site is listed with Robinson Property and Savills.

According to agent Guy Robinson, managing director of Robinson Property, there has already been some international and domestic interest in the sale.

"Savills pitched the hotel in a roadshow in south-east Asia and I can say there has been international interest."

Salamander Shores was sold to a Sydney-based consortium in 2002 for reportedly $7 million.

It was placed on the market again in 2012 with no record of a sale.

Currently Accor Hotels Australia operates a 91-room hotel and pub on the site, taking a gross annual income of about $4 million.

However, the sale comes with a R3 medium density residential zone approval and a master plan for the construction of a mixed-use residential and tourist development on the site.

This means new owners could construct the proposed 203 residential apartments on the property with the hotel and conference space.

This would take its total size from 12,220 square metres to a whopping 19,660 square metres.

"We could see one of two buyers," Mr Robinson said.

"It is possible someone might buy the hotel to renovate and expand it.

"The most likely outcome is that someone buys and renovates the entire site based on the concept plans for 203 new apartments."

It could be one to two months following the expressions of interest period before a sale is made public.

"There is not going to be a bulldozer arrive tomorrow," he said.

Salamander Shores would "continue to operate as a hotel and pub in the meantime", Mr Robinson said.