The demolition of Parramatta Stadium has begun, with drone footage showing seats ripped out, stands torn down and the site almost levelled to make way for Sydney's "future home of sport".

As it is almost 31 years to the day the stadium was first opened, the demolition is "bittersweet", Sport Minister Stuart Ayres says, but the buzz continues to build around the new Western Sydney Stadium.

"As we see the old stands being torn down we can rest assured Western Sydney Stadium will set a new standard for sporting experience in Sydney," Mr Ayres said.

"Valuable items have been safely stored and smaller clubs across NSW like the Moree Boars and Blue Mountains Cricket Association have collected items like chairs and signage," he said.

The new "world-class" rectangular Western Sydney Stadium will hold 30,000 people and will employ about 2,000 during construction.

Member for Parramatta Geoff Lee said community feedback would inform the next stage of plans for the project.

"The new Western Sydney Stadium is the centrepiece of an infrastructure boom occurring across Parramatta, thanks to unprecedented NSW Government investments in health, cultural, public transport and residential infrastructure in our region," Mr Lee said.

Lendlease won the contract to design and build the new stadium which is expected to be open to fans in 2019.

The new stadium will play home to the NRL's Parramatta Eels and A-League side Western Sydney Wanderers and is expected to have the steepest stands in the country.