St Michaels Street is a street in central Oxford, England. It runs between New Inn Hall Street to the west and Cornmarket to the east, with Ship Street almost opposite. Northgate Hall is located here. Also to be found off the street is the debating chamber of the Oxford Union, a leading student society in the University of Oxford. 

Ref. Wikipedia  18th April 2018

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Find a fine example of a house designed by Sir John Vanbrugh in St Michaels Street.  "The twin giant pilasters that shoot up on either side of the door, the curious canopy above them, and the curve-topped windows above that – all these are Vanbrugh-type features. So are the heavy keystones – the central wedge-shaped stones the top the first- and second-floor windows. It all adds up to a surprising piece of grandeur in a side street, but it’s the kind of thing that English cities are good at – pulling us up short with something dramatic in a quiet or everyday setting. Not for nothing is this compact piece of architectural splendour called Vanbrugh House".

Sir John Vanbrugh was the architect of Blenheim Palace, Oxfordshire.

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Ref. English Buildings blog, Philip Wilkinson  18th April 2018