Mace has been confirmed as management contractor for the redevelopment of Twickenham Stadium’s East Stand.
The project, valued at £54m, will see the contractor add 11,600 sq m of space to the stand over six levels.
While this will not increase the stadium’s overall capacity of 82,000, it will add hospitality space and increase room for non-matchday activities to take place within the stadium, such as conferences and banquets.
Mace acted as project manager during the initial design and planning stages. The firm has now transferred to the construction management role for the construction phase.
Work is due to start straight after this year’s Six Nations tournament, with the last match at Twickenham set to be England’s game against Scotland on 11 March.
Piling and local service diversions will start on 13 March, according to planning documents.
The construction team will then have to demobilise and clear the site several times during the programme for events at the stadium including 2018 Six Nations fixtures, the annual Army vs Navy match, the HSBC London Sevens tournament, the Aviva Premiership final, and two NFL games.
The project is planned to complete in June 2018 before the autumn internationals against Southern hemisphere opposition.
Welsh subcontractor Pro Steel Engineering revealed last week that it had been awarded a £4.5m contract to manage 850 tonnes of steelwork for the extension.
KSS is the architect and principal designer for the scheme, with Mott MacDonald acting as structural engineers.
Mace declined to comment.