Housing developers have been invited to bid for work on a £130 million initiative to build 1,000 council homes for rent across Scotland.
The National Housing Trust scheme, led by the Scottish government and the Scottish Futures Trust, will see the purchase of newly-built houses by local authorities with loans underwritten by the Scottish government.
The procurement notice will appear on the Official Journal of the European Union website. Housing developers have until 25 October to respond.
The NHT aims to kickstart activity on mothballed building sites and create or safeguard up to 1,000 jobs in the construction sector.
Twelve authorities have signed up, including Glasgow, Edinburgh, Highland and Stirling.
Housing and communities minister Alex Neil said: “Building more affordable homes across Scotland presents a formidable challenge in a climate of increasing financial constraint.
“The National Housing Trust model breaks new ground in the UK and I am delighted that so many councils have embraced this approach as one that can help solve housing pressures locally.”