The demand for housing had led to an influx of investors as they scoured the area for new sites, agents said.

With the lack of supply of housing in the headlines, any developable land is being pounced upon across the metropolitan and beyond.

Director and partner of Ray White Commercial NSW Jeff Moxham said the area was proving popular to a wide range of developers due to the strong pace of pre-sales and a solid base of local purchasers.

"Given the local buyer interest we are increasingly seeing builders and developers branching out into the Sutherland Shire and taking up the increased densities now available," Mr Moxham said.

"It is a natural progression following the same trend of other Sydney metro areas that have been rezoned and subsequently developed over the last two to three years."

Ray White Commercial head of research Vanessa Rader said with 20,364 local, small businesses employing over 72,000 people and contributing $8.8 billion to the state domestic product, demand in Sutherland had kept occupancy levels high in the industrial and commercial markets.

"Construction and trades account for a high volume of industrial occupancy in this market, growth in professional service providers have improved office and retail assets, while healthcare and childcare operatives have increased their development and construction needs in traditional industrial as well as residential locations," Ms Rader said.

Ray White Projects director Eddie Mansour said one project, Union Place in Jannali, saw 40 per cent of units sold at the launch weekend and another 30 per cent sold at record prices later, the majority of which were local purchasers.

Charlie Yankos –  director of the recently opened Ray White Commercial NSW Greater South Sydney –said the mix of lifestyle in the area, transportation to the city and south coast and the revamped Westfield Miranda shopping centre were attracting new investors and developers.

Mr Moxham believes the same buyer demand will apply to a development-approved 2864 square metre site at 134-146 Linden Street, Sutherland.

"Linden Street has approval for 62 units over two stunning six-storey buildings that encompass a perfectly shaped block with four street frontages," he said.

Further attention to architectural detail has also been demonstrated in delivering Manhattan-style penthouse apartments on the top floors of each tower.

The developer, Peter Gribble, managing director of Quantum Group, said: "This presents a degree of sophistication and prestige to a suburb that has a strong local downsizer market and for purchasers looking for a more spacious alternative to downsizing."

Ray White Commercial NSW selling agent Scott Timbrell said Sutherland offered a convenient location with transport, shopping, education and medical precincts only moments away. There was a further $45 million of planned infrastructure.

Two strata corporations representing four freestanding unit blocks in Cronulla have also sold their properties in one line. The blocks were purchased by developers for a total price of $54 million. They were at 49-51 and 55-57 Gerrale Street, opposite Cronulla beach.

The deal was negotiated by Dylan McEvoy, a manager in JLL's NSW metropolitan sales and investments team.

John Thomas, chairman of the group of residents at 49-51 Gerrale Street, said the release of Sutherland Shire's LEP2015 had brought about changes to zoning which added significant value to properties on Gerrale Street and presented an opportunity for all owners to effect a collective sale.

"There was the potential for a developer to carry out a major development for the area containing residential and commercial units," Mr Thomas said.