League event planners insist revelling will remain civilised but residents unconvinced.
The prospect of a booze-fuelled Wellington Sevens-style crowd marauding around Mt Eden and Sandringham hasn't gone down well with the Eden Park Residents' Association, however NRL Nines promotor Dean Lonergan insists locals have nothing to fear from an event that is aiming to attract 96,000 spectators over two days each February.
Association president Mark Donnelly said the combination of access to cheap alcohol outside the ground, the length of the event - which will run from 12.00pm to 7.00pm each day - and the residential location of the ground had a history of creating crowd trouble.
"Two full days would create a number of issues," Mr Donnelly said. "We've seen the problems in the past with alcohol consumption over long periods of time, both with one-day cricket and double-header league.
"It is a very difficult venue to control alcohol. And if somebody has been in a licensed premise for seven or eight hours, releasing them into a local neighbourhood raises issues. We see that even with shorter 20/20 cricket games there is a high chance of crowd behaviour problems as they leave the ground."