 Wales ' first home international was played at St Helen 's ground , Swansea in 1882 . In the 1880s and 1890s , home Welsh internationals were played at Cardiff , Swansea , Newport and <unk> . Swansea continued to be used as an international venue until 1954 , when Cardiff Arms Park became Wales ' primary home venue . Cardiff Arms Park first had a stand erected in 1881 , and continued to expand its seating that decade . <unk> continued to grow and in 1902 in Wales ' match against Scotland a world record 40 @,@ 000 spectators paid to see the match . In 1911 , the owners of the Arms Park , the Marquess of <unk> 's family , confirmed Wales ' tenure and the 1920s and 1930s , Wales gradually gained increasing control . A new stand was built at the park in the 1933 – 34 season , which increased the grounds capacity to 56 @,@ 000 . 
