As with the C&SLR, the high cost of property in the City, coupled with the presence of the Royal Exchange, the Bank of England, and Mansion House, meant that the station had to be built entirely underground. Permission was granted by the City of London Corporation for the station to be sited beneath the busy junction of roads meeting at this point on condition that public subways were provided to act as pedestrian road crossings. To avoid undermining the road above, the station's lifts were installed in separate lift shafts rather than paired two-per-shaft as usual.