I think the reference comes from the 1851 census? In which case it could be a mistranscription by the enumerator. Lockie's Topography of London (1810) includes the following possibilities:
Ward's Court, Goswell St
Ward's Row, Pimlico
Ward's Row, Bethnal Green Road
Warden's Court, Clerkenwell
Wardour Mews, Portland St
Edward's Mews, Duke Street, Manchester Square