By the 18th century, traffic was struggling along the narrow streets south of Holbein Gate, which led to King Street Gate being demolished in 1723. Holbein Gate, in turn, was demolished in 1759. Meanwhile, Parliament Street was a side road alongside the palace, leading to the Palace of Westminster. After the Palace of Whitehall was destroyed, Parliament Street was widened to match Whitehall's width. The present appearance of the street dates from 1899 after a group of houses between Downing Street and Great George Street were destroyed.