A Number 10 in the north will be based in the centre of Manchester at an existing government hub, reports suggest.
According to the BBC, the new branch of Downing Street will work out of Heron House, an existing GCHQ hub which fronts on to Albert Square and is opposite Manchester Town Hall.
Sources close to the prime minister told the broadcaster that staff would use the building before moving into the government's new digital campus, which is being built in Ancoats.
CoStar News understands that No 10 North will use a separate suite of more than 4,700 square feet at Heron House, with the government set to sub-lease the space from Manchester City Council.
GCHQ has an existing presence at the property and occupies circa 13,000 square feet, which opened in late 2019. It uses the building to "identify and disrupt threats to the UK", according to its website.
Ahead of being named Prime Minister on Monday, Andy Burnham outlined plans to raise living standards across the country with a No 10 North, explaining it would be the “conduit through which we redistribute power and resources across the UK".
He said in June: "The job of No 10 North will be to make power flow into the Midlands, into the South West, into the East of England and, yes, into London."
In a written statement made on behalf of the Prime Minister today, Labour peer Baroness Smith of Basildon said the government was establishing a No10 North as the "engine room of devolution and good growth in every postcode, across government and the wider economy".
Although she did not reveal the location of the office, Baroness Smith said the work would involve moving local economic growth and devolution strategy from the Ministry of Housing, Communities and Local Government and local economic growth policy from HM Treasury directly into No 10 North.
"This ensures that local economic growth policy and regional empowerment are no longer isolated from one another, establishing No 10 North as the dominant driver of the UK’s economy," she added.
The Treasury approved plans for the 900,000-square-foot, purpose-built Ancoats digital campus in March this year, with the GPA providing a rough timeline for the project's progress last month. The update confirmed groundworks at the site, a former retail park, had begun and the buildings would be delivered for 2032.
According to the government, circa 9,000 civil servants will be housed across the buildings when they open.