Final surveys are ongoing on the Grade-I listed site which was built in 1835.
Robertson has been appointed management contractor with improvement works set to start by the end of this month with the demolition of existing units within the central Arcade.
Within the Arcade two new pavilions will be installed and improved toilet facilities provided. All entrances will be renovated to increase the market’s visibility and fitted with glazed, automatic sliding doors to help reduce draughts.
There will also be improved décor, wayfinding and signage in the alleys, building upon the original designs that exist throughout the market.
The external area around the entrances will also be upgraded.
It is expected the works will complete by summer 2025, but the council have said there are a number of challenges at the site.
These include ageing utility supplies within the market and the presence of a listed air raid shelter beneath part of the site.
Leader of Newcastle City Council, Cllr Nick Kemp, said: “Everyone who calls this city home has their own memories of the Grainger Market. We all have a story to tell.
“It’s a jewel in the crown of our city centre and a major piece of the huge investments being made in the heartbeat of Newcastle.
“This won’t be an easy redevelopment, but I am delighted we have our contractor on board and that work will be getting underway soon.”
Neil Kennedy, regional managing director, Robertson Construction North East, said: “The Grainger Market project is an outstanding opportunity to improve a key Newcastle landmark, and we are looking forward to working alongside the traders and local communities to make Newcastle City Council’s vision a reality.
“It’s important to us, as a regional contractor, to work closely with our local supply chain and we are committed to bringing social and economic benefits to the community.
“Right now, that means local employment and supply chain spend for the construction phase of the project but it’s clear this is just the start of the positive impact the improved Grainger Market will bring to the city.”
The project is being led by the council at a cost of £9m, £8.2m of which is from levelling up funding and the remaining £800,000 from the council.