Swiss-based architecture firm Herzog & de Meuron is reportedly working on plans to increase the capacity of Chelsea Football Club’s home stadium in partnership with London-based practice Lifschutz Davidson Sandilands.

According to the Architects’ Journal the Swiss practice is looking at concept designs for Chelsea’s Stamford Bridge ground in west London.

Currently boasting 41,837 seats, the club wants to expand to a 60,000 seat capacity, following a study undertaken in June 2014. At the time of commissioning, the club said: “The study will assess the feasibility of an expansion of the stadium within the existing historic site boundaries, potentially to enlarge its capacity, enhance its facilities and improve the movement of people and vehicles on match and non-matchdays.”

Several Premier League clubs have been looking to expand their grounds in recent months. Both Liverpool FC and Tottenham Hotspur have plans in place for major expansions which will be taking place soon.

Whether or not Chelsea is carrying out this expansion to keep up with the competition remains to be seen. The club has previously assessed other, larger, sites for relocation, including two regeneration schemes at Battersea Power Station and Earls Court.

Herzog & de Meuron has worked on several large sports projects, including the Bird’s Nest Stadium for the 2008 Beijing Olympic Games and the 75,000 seat Allianz Arena in Germany, home to Bayern Munich.