The famous entrance, with its Toteboard and kennels, has received Grade-II status following recommendation by English Heritage (EH).
The stadium has been significantly altered since opening in 1931, with glazed-in stands added in 1965 and a new north side main entrance installed in 1969. But the original Art Deco frontage and kennels remain intact.
Walthamstow is described by EH as the 'best surviving' and 'most celebrated' inter-war greyhound stadium. Research has not uncovered an architect, added EH, but the group said the stadium was clearly designed for style and display as well as function.
Outlining the case for listed status, the watchdog said the stadium is a landmark for East London and early Twentieth Century working class culture.
In a statement to the Department of Culture, Media and Sport (DCMS), EH said: 'There is a clear Art Deco flavour to [Walthamstow's] style, which sets it comfortably in the context of its inter-War period, comparable with other relatively new building types that exploited the striking lines of Modernism, such as the factories on the Great West Road in west London.'
EH summed up the building as 'functional, self-conscious and delightfully architectural.'
EH added: 'The building reflects the pageantry and show of the sport -(It is) the best surviving and most architecturally interesting vintage greyhound stadium in the country.'