Speaking during a visit to the West Midlands he is expected to say: "For years, we've had shared ownership, where you part-buy, part-rent a property. So many people are attracted to this idea, especially those who thought they'd never have a chance of owning a home," he will say.
"But, because it's been heavily restricted, many of those people have missed out. We've had local councils dictating who is eligible, based on everything from salary to profession to where the buyer comes from."
Other areas of progress the Prime Minister will highlight in his speech include the building of new starter homes, the expansion of free childcare for working families, a crackdown on under-performing schools and an expansion of apprenticeships.
"A manifesto shouldn't be a wish-list; it should be a check list. And that's why, since the election, we haven't been tacking off in a new direction, but marking off the commitments we made."