In 1921 at 1 Park rd, Beckenham is the family of Stanley GLANFIELD (47, clothing manufacturer, Director "G Glanfield and Son Ltd"). They have 3 servants (a cook, nurse and parlourmaid). It is possible it was the same family still there in 1930.
Modified to add:
Though the property, 1 Park road, Beckenham" was listed for sale in 1929
Tuesday, Apr. 9, 1929
Publication: The Times