During the early decades of the 19th Century, the number of inhabitants in the area began to increase significantly. By the middle of the nineteenth century the population had increased to 400 and the centre of Wood Green's gravity had moved north and east with most development taking place in a triangle directly north of St Michael's Church. By the time of the publication of the 1869 Ordnance Survey map, Clarence Road, Truro Road, Nightingale Road, Finsbury Road and Commerce Road were all laid out and were becoming increasingly built up.