The chief secretary to the Treasury Danny Alexander has today confirmed that the government will invest an extra £3 billion in affordable housing over three yearsfrom 2015 to build 165,000 new homes. Alexander - who will provide the keynote speech at this year's Housing Market Intelligence in October - was putting detail on the government's spending plans following the chancellor George Osborne's announcement of the spending review yesterday. The chief secretary also announced a £100 billion investment in infrastructure from 2015 to 2020. "Our new approach to housing is truly transformative," said Alexander. "Our Help to Buy scheme is already getting people onto the ladder. But put simply, this country does not have enough homes that people can afford. A good home should not be a luxury for the few, but an achievable aspiration for the many. But our housing associations have told me they can do more. To do this, they need certainty on rents alongside public investment. Today I can do both of these things. I can guarantee social rents will be set at CPI+1% out to 2025. That’s the longest period ever. And I can provide £3 billion more capital over three years from 2015 to deliver …