About 10 venues signed up to the agreement at a meeting on Friday, which includes almost all late-trading establishments in the precinct. Only one, the Sly Fox in Enmore, has declined to join the accord. The troubled Imperial Hotel in Erskineville is currently closed and was not included in the discussions.

The six-month trial is due to begin on September 1. It will apply on Friday and Saturday nights, but not during the week, when trade is generally quieter.

Newtown Liquor Accord chairman Tim Claydon said the agreement aimed to deter revellers from heading to King Street or Enmore Road once 1.30am lockout and 3am "last drinks" kicked in around the CBD, Oxford Street and Kings Cross.

"We're not going to be the last spot for drinks," he said. "Don't even think of heading to Newtown at 3am after a night out in the city, as you simply won't get into venues."

Anecdotal reports have suggested more partygoers are frequenting Newtown since the city lockouts were introduced in February last year and Mr Claydon noted "there seems to have been an increase in patronage in the area".