Manakau resident Judy Webby, who lives two doors down from the hotel, said the music was too loud to sleep through.
"As even ear plugs did not enable me to sleep I took a walk around the block around midnight to hear if the music was as loud in other places. It was loud all around the block.
"I don't want to sound like the fun police, and I think it's great that the pub is open, but this is a residential area. It's the volume. I don't understand the necessity to have the music at such a high volume in this area.
"They are licensed to sell booze until 1am but they are not licensed to make a racket 'til 1am," Webby said.
"What upsets us is that they were given a verbal warning and they didn't turn the music down. If they had just complied, things could have been different."
Webby opposed the hotel's previous operators' application for on- and off-licences at a hearing in October last year.
The licences were granted, though the licensing committee cut back the hotel's closing time from a requested 2am to 1am.
New operators Vincent Cornell-Cooke and Natalie Smith took over directorship of the previous operators' company, Manakau Hotel (2015) Ltd, two months ago.
The hearing is on Tuesday December 20 at 9.30am in Horowhenua District Council chambers.