The 50,000 sq ft building project is the first phase of an ambitious regeneration development for the town.
The Curve is being developed by Slough Regeneration Partnership, a local asset backed vehicle between Morgan Sindall Investments and Slough Borough Council.
The LABV was established in March 2013 for a period of 15 years and will also deliver several residential, leisure, education and commercial projects over this period up to a value of £1 billion.
Councillor Mohammed Nazir, Slough Borough Council’s board member of the SRP said: “The signing of the contract to build The Curve is an exciting and major step forward in achieving our vision to deliver a first class facility that puts learning and culture at the heart of Slough.
“It is one of the centrepieces of the town centre regeneration, and is critical to creating a welcoming, functional and enjoyable civic space in the town centre.”
Dave Cook, area director for Morgan Sindall, said: “We’re looking forward to working closely with the Slough Regeneration Partnership as we deliver the first phase of this ambitious regeneration scheme.”
The Curve is expected to open to visitors in 2015. The existing town centre library will continue to operate as normal until then.