Millwall moved to a new stadium, named The Den, in New Cross, South London in 1910. The club had previously occupied four different grounds in the 25 years since their formation in East London; limited expansion space on the Isle of Dogs meant The Lions had to move to boost support and attendances. The estimated cost of The Den was £10,000. The first match played at the new ground was on 22 October 1910 against reigning Southern League champions Brighton & Hove Albion, who won 1–0.