Ed Miliband is claiming that it would take until 2058 to meet the coalition's targets for home building at the current rate.
The Prime Minister appears to disagree about the precise numbers of houses built.
Labour leader Ed Miliband is asking the Prime Minister about the progress of the Priority School Building Programme, claiming that work has started on only one of the promised 261.
David Cameron countered that the coalition government has increased infrastructure spending since the last Labour government.
A technical blip during Prime Minister's Questions today led to tweeters claiming that the Prime Minister swore at an MP.Read the full story ›
Labour MP Alex Cunningham caused raucous laughter during Prime Minister's Questions in the House of Commons today, by asking David Cameron:
"On food safety, can the PM confirm that traces of stalking horse have been found in the Conservative Party food chain?"
Mr Cameron admitted the "ingenious" question had "thrown him completely."
Ed Miliband repeatedly pressed David Cameron in Prime Minister's Questions on whether he would recommend that Britain should leave the EU in a future referendum.
Labour leader Ed Miliband has said his party does not want an in/out referendum on Europe.
The Labour leader Ed Miliband is asking the Prime Minister to give guarantees that he will recommend that Britain should leave the European Union if he does not get the settlement he wants.
David Cameron responded saying: "I want Britain to be part of a reformed and successful European Union."
Labour MP Ann Clwyd, who revealed that her husband of 50 years "died like a battery hen" in hospital, asked David Cameron in PMQs what he planned to do about the "increasing complaints about nurses who fail to show care and compassion to their patients."
Ms Clwyd told the BBC's World at One programme he was treated with "coldness, indifference and contempt" by nurses.
The Labour leader Ed Miliband accused David Cameron's cabinet of being "at each other like rats in a sack".
Mr Cameron countered that Mr Miliband worked in a Government in which the Prime Minister couldn't be in the same room as the Chancellor.
The former Defence Secretary Liam Fox asked the Prime Minister whether he would address the issue of access to justice as well as press regulation.
He said he that anyone should have the ability to use the existing libel and defamation laws and not just the rich.
The Prime Minister said people "should be able to rely on a good regulatory system" to stop abuses happening before they reach court.