Union flags and and Ulster Volunteer Force (UVF) flags are flying in Global Crescent and Cantrell Close.
The housing developments are part of the Together Building United Communities programme.
DUP MP Emma Little Pengelly said she had visited about 100 homes and found mixed views among residents.
But a DUP spokesman said earlier flags or any other emblems supporting paramilitaries had no place in communities and should all be all removed.
"Paramilitaries are a plague on society," the spokesman told the BBC's Nolan Show. "The DUP condemns all those who cling to criminality and violence."
The Police Service of Northern Ireland said removing flags was not its responsibility, and police would only act to remove flags where there were "substantial risks to public safety".
"We will work with local communities and respond to any issues where there is a concern for public safety or where it is believed a criminal offence has occurred," said the PSNI in a statement.
Mrs Little Pengelly spent a number of hours going door-to-door to meet local residents on Monday evening, and afterwards spoke to the BBC.
"There were some people who were very supportive of the flags, people who felt very much it was part of the tradition of the local area and the wider area," she said.
"The majority of people said to me: 'We understand that the flags have gone up, but we also understand that they will come back down again'.
"Really they didn't want a public fuss around this matter," she added.
"And there were some who had concerns around this, who would prefer for the flags not to be there.
"The way I would put this is that it was a much more complex picture than I was imagining.
"There were some concerns raised, I reassured those individuals that I would be here to support them as well, I would represent their views to the housing association."
The housing developments are near the Ravenhill and Cregagh roads, which border the South Belfast and East Belfast constituencies.
Mrs Little Pengelly became the new MP for South Belfast earlier this month.
Alliance MLA Paula Bradshaw said it was "almost beyond belief" that Mrs Little Pengelly believes there was no widespread demand for removal of flags from a mixed housing development in the area.
"A shared community should be welcoming to all and intimidating to none," she said.

The club are close to appointing the former Ajax and Inter Milan boss, 47, to succeed Sam Allardyce, who led Palace to 14th in the Premier League in May following a relegation battle.
"The Champions League is not realistic but with good organisation you can stay in the middle," De Boer said.
"With a great season, maybe you could sneak European football."
Between 2010 and 2016, De Boer coached Ajax, winning the Eredivisie for four consecutive seasons between 2011 and 2015.
But the former Netherlands international has been out of work since he was sacked by Inter Milan in November 2016 after only 85 days in charge.
"It's always been one of his desires to come to the Premier League," added Ronald.
"It's the biggest league in the world - not necessarily the best - but the most exciting for sure. Frank wants to be part of that and hopefully he gets that opportunity with Crystal Palace.
"As it stands now, I know that both sides want to go with each other but there are just little things to discuss."
De Boer was appointed as Inter boss two weeks before the start of the 2015-16 season after Roberto Mancini left by mutual consent.
He had never previously coached or played in Italy and led Inter to just four league wins in his opening 11 games, leaving them 12th in the Serie A table.
"Falling down on your face sometimes helps you to move forward," said his brother.
"It's so difficult to step into a team who are not at all fit and have an average age of 28, just two weeks before the start of the season. It is very difficult to change the philosophy.
"But he learned he needs a good pre-season to get a proper idea of what his squad is about.
"He is more than capable of doing well with any team and also with Crystal Palace if he decides to sign with them."
A DUP MP has said she has found no widespread demands for the removal of flags from a mixed housing development in her South Belfast constituency.
[NEXT_CONCEPT]
Frank de Boer could help Crystal Palace to the Europa League if he takes charge at Selhurst Park, says brother Ronald.