Looking through the 1878 PO Directory of Surrey, there are some other possibilities:
James Hall lived at Oaklands in Kenley
Frederick Wm Home or Hume lived at Oaklands, Ashburton Road, Croydon
John Thompson Burnell lived at Oaklands, Palace Road, Lower Norwood
John Jones lived at Oaklands, Canterbury Gro, Lower Norwood
Mrs Coleman lived at Oaklands, Beulah Hill, Upper Norwood
John Townley Smith lived at Oaklands, Dulwich Wood Park, Upper Norwood
Daniel E Goddard lived at Oaklands, Harcourt Road, Wallington
Robert Whittingham lived at 1 Oaklands, Park Hill Road, Croydon