London’s Alleys: Spring Mews, W1

This is a narrow passage in Marylebone that once led to horse stables for the rich folk who lived here and is now more of a back access for a replacement mansion block
The mews first shows up as a plan only in a map from 1799 as the area was being developed by the Portman Estate from fields into housing.
R Horwood Map 1799
Just a few years later, the whole area was developed, and Spring Mews was now providing access to the backs of grand houses facing outwards onto the roads.
The road to the eas