The firm initially secured a two year framework agreement with the fast food giant in 2012 worth £10m.

Elliott has been designing and building both single storey and new two storey McDonald’s restaurants.

The firm is now working on a ‘restaurant of the future’ which was recently inspected by senior McDonald’s staff during a factory visit.

More than 90% of the units are completed in Elliott’s own off-site facility with work on site taking only weeks.

Bertrand Quenot, Managing Director at Elliott, said: “This contract extension demonstrates the trust and confidence that McDonalds UK has in Elliott’s ability to support their restaurant programme.

“We are committed to providing the best service to McDonalds and are continually looking at ways of improving overall project delivery performance.”