Sydney residents who are not vaccinated against Covid-19 risk being barred from various social activities even when they are freed from stay-at-home orders in December, New South Wales state Premier Gladys Berejkilian has warned.

Under a roadmap to exit lockdown in Australia's biggest city, unvaccinated people are already subject to delays in freedoms that will be gradually granted to inoculated residents between October 11 and December 1.

Berejkilian said people who choose not to be vaccinated could be barred entry to shops, restaurants and entertainment venues even after the state lifts all restrictions against them on December 1.

"A lot of businesses have said they will not accept anyone who is unvaccinated," Berejiklian told Seven News. "Life for the unvaccinated will be very difficult indefinitely."

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