The Kansas City Chiefs, of American football's NFL, have tied up with engineering and architecture firm HNTB, as plans for their new stadium continue to take shape.

Through a deal unveiled yesterday, HNTB will serve as the official architect for the Chiefs, who plan to move to their new home in Wyandotte County, Kansas, in 2031.

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HNTB is now working alongside the Chiefs and the design experts inside the NFL organization to "make it a one-of-a-kind destination for Chiefs Kingdom."

This news comes a day after it was disclosed that the Clark Construction Group, and AECOM, will be involved in building the new venue.

Construction on the 70,000-capacity stadium is set to begin next year, with the project expected to cost around $3 billion.

The Chiefs have played at the iconic Arrowhead Stadium – the oldest venue in the American Football Conference – since construction was finished in 1972.

Mark Donovan, president of the Chiefs, commented on the agreement: "With more than 100 years of infrastructure design, planning, and management experience, HNTB has long been a leader in delivering projects with significant impact, and the work that we accomplish together over the next five years will be no different."

Tom O'Grady, HNTB's president, added: "Becoming the official architect of the Kansas City Chiefs creates new and unique opportunities to build on our collaborative vision, for both the new stadium and the programs that connect with Chiefs Kingdom and the broader Kansas City community. We are excited about what we will accomplish together in the years ahead."

The Chiefs unveiled that they will be leaving Arrowhead last December; following the conclusion of the 2031 campaign, that venue will be demolished.

Arrowhead Stadium is located inside Kansas City's Truman Sports Complex – that site also houses baseball's Kansas City Royals, who play their home games at Kauffman Stadium.

The Royals are also aiming to leave their home ballpark by 2031, and are planning to move to a new, 34,000-capacity venue in downtown Kansas City.

Late October saw the Major League Baseball franchise unveil Legends Global as the owner's representative for the project.

The Royals have also recently announced Australian design firm Populous as their architect of record.