Ed Miliband will pledge to make the housing market fairer for private renters when he fleshes out his One Nation philosophy.
The Labour leader is to warn that action is needed to prevent damaging social divisions between home owners and those who rent.
The message comes in a speech to the Fabian Society, in which he will again seek to distance his party from some of the most controversial elements of the last government's record.
He will admit that New Labour was "too timid in enforcing rights and responsibilities, especially at the top, and it was too sanguine about the consequences of the rampant free markets".
"By the time we left office, too many of people of Britain didn't feel as if the Labour Party was open to their influence, or listening to them," Mr Miliband will say.
"For me, the most obvious example is immigration. I bow to nobody in my celebration of the multi-ethnic, diverse nature of Britain.
"But high levels of migration were having huge effects on the lives of people in Britain - and too often those in power seemed not to accept this.
"The fact that they didn't explains partly why people turned against us in the last general election.
"We have to move on from New Labour, as well as from this government."
Mr Miliband is to tell the event in central London that if Labour wins the next general election it will have to find ways of achieving change while tackling a lingering deficit.