Whereas Ruthven Street was graced with two-storey terraces decorated with 'Paddington lace', St James Road is populated with single-storey 'Victorian Gothic' terraces with 'gingerbread' barge boards. Neither thoroughfare is particularly long (about 250m) and they back onto each other, being separated only by a service lane.
Both style of housing is semi-detached, originally with toilet and laundry in structures in the back-yard. They appear to be vastly different in value, but frequently houses built in the second half of the 19th century were built by small speculators who built the first house, lived in it, whilst building the other 4 or 5 adjacent houses. So it may have been constrained by the wealth of the builder, not the buyer.