The shape was irregular — two key masses joined by the comparatively thin, fast-developing Earlsfield area in the middle.
In the north-west of the constituency, Putney and central Wandsworth were areas declining somewhat in status in the period.
Working class housing was also spreading from the neighbouring area of Battersea, along the part of the south bank of the River Thames included.
However, overall the district was middle class in character, with new estates being developed in the south-east end of the seat at Tooting and Streatham (to the south of Clapham).
The near-whole new offspring were seats of Putney, Streatham and Wandsworth Central and the partial successors were Balham and Tooting and Clapham.