From the link I provide at #9:
There is no doubt that Castle Alley had a dubious reputation - a surveyor for Charles Booth's Map of London Poverty in 1898 described it thus:
"..under arch into Castle Alley. No houses, factories on either side, two of the Whitechapel Murders were committed at the south end. This street is quiet and used as a place of rest by the dwellers in the Whitechapel Lodging Houses. By custom, women sit on the west side of the pavement, men on the east."[9]
Soon after the murder (1890), properties on the east side at the junction with with Whitechapel High Street were demolished[10], although there were still concerns as to the narrowness of the entrance in the 1900s. It was properly widened c.1908[11].By 1916 it had been renamed as part of Old Castle Street[12]. By the 1930s, the Board School had been replaced by LCC flats (Herbert House) and a walkway had been constructed across the street as part of the Brooke Bond tea warehouses on the west side[13]. War damage on the eastern side led to the redevelopment of adjacent Newcastle Street and other small thoroughfares, resulting in the construction of the New Holland estate (Bradbury House, Ladbroke House and Denning Point) between 1965 and 1971[14]. Pommell Way now provides a direct link from Old Castle Street to Commercial Street.
The Wash Houses were redeveloped in 1998 and now form part of the London Metropolitan University's Women's Library (opened 2002).