Belsize Park Gardens is a street in the Belsize Park area of Hampstead in London. Located in the London Borough of Camden, it is residential street featuring white stucco Victorian era buildings. It runs roughly southeastwards from Belsize Avenue in Belsize Village before terminating at a junction with Eton Avenue, England's Lane and Primrose Hill Road. The Grade II listed pub The Washington, dating from around 1865, is located at its eastern end.