This road no longer exists and was where the northern end of Kingsway is today. It can be seen on this 18th century map, south east of Bloomsbury Square: http://www.motco.com/Map/81002/SeriesSearchPlat...
The overlays that highlight 17th century London features are approximate and derived from:
Open location in Google Maps: 51.516942, -0.119916
Chart showing the number of references in each month of the diary’s entries.