The party says its plan would generate investment of £16bn and support 14,000 jobs a year, making it the largest home building and investment programme since devolution.
A further promise would see a new single standard for housing quality, making sure homes are more energy efficient, spacious and better quality, and 70 per cent of the new houses would be for social rent.
The announcement is due to be made by Nicola Sturgeon at the Cosla conference today.
It comes after demands by housing charity Shelter for a “transformative affordable housing programme” for the next five years, with a target of delivering 53,000 affordable homes alongside a capital investment programme of £3.4 billion.
Nicola Sturgeon is expected to say: “In partnership with councils and social landlords, we have delivered nearly 100,000 affordable homes in our time in office – and if the SNP is re-elected, ramping up this ambition will be central to our plans.
“We will deliver a further 100,000 affordable homes over the next decade – with at least 70 per cent of these being for social rent.
“We’ll back this major ambitious programme with £3.4 billion investment in the next parliamentary term. This target overall would support about £16 billion in total investment and up to 14,000 jobs a year.
“That is a huge investment in jobs, in homes and in better communities – a down-payment on Scotland’s economic recovery.”