Buckingham Group Contracting has been selected to carry out the project, which will see 7,000 seats added to the stand.
The scheme will increase the capacity of Liverpool FC’s Anfield Stadium to 61,000, making it the third biggest ground in the Premier League behind Manchester United’s Old Trafford and the Tottenham Hotspur Stadium.
Buckingham will deliver the expansion throughout the season while games continue to be played.
The redeveloped Anfield Road Stand is anticipated to be ready for the 2023-24 season.
The lower tier is to be retained and refurbished with a new upper tier built above it. As well as an increased capacity, the redeveloped stand will feature improved concourses and hospitality facilities.
The decision to start the project follows a period of public consultation on how best to carry out the work.
Andy Hughes, managing director of Liverpool FC, said: “We have been clear from the beginning that in order for this expansion to go ahead we needed the cooperation of local residents and the community to successfully navigate the complex planning landscape, and to ensure the project is financially viable.
“We needed certainty for this project to progress and are now in a position to be able to move forward.”
The £60m project was given planning permission by Liverpool City Council in June. The club also awarded permission to hold up to six concerts and major events at the stadium over five seasons.
KSS is the scheme’s architect, with Turley advising on planning. Planit-IE is the landscape architect.
Liverpool FC had originally anticipated that the project would complete in time for the 2022/23 season, but it was put on hold due to the pandemic.
The club announced it was reviving the scheme last December, saying that the absence of supporters in stadia had reaffirmed the club’s desire to expand.