The following extract as to the rebuilding of the City after the Fire may be of interest :
To provide for the rebuilding of the streets after the Fire of 1666, an Act was passed in 1667 deciding which should be accounted high and principal streets, which streets or lanes of note, which bye-lanes, six only were accounted high and principal streets, 214 lanes, alleys, etc. (L. and P. Chas. II. 1666-7, p. 577).
A Dictionary of London. Henry A Harben. 1918.