This feature is described in the English Heritage Historic Area Assessment for Cooling Parish. The report states:
"A poorhouse was standing by the 18th century".
"In 1835 the poorhouse was functionally superceded by the Hoo Poor Law Union workhouse in Hoo St Werburgh, although the row continued in residential use throughout the century, known as Strand Cottages."
"Some rebuilding occurred in the early 20th century; Strand Cottages were replaced by a row of four dwellings (now 1-4 Dickens Walk…This row of Arts-and-Craft-style dwellings with white painted brickwork and gabled end cottages dates from the 1910s or 1920s". (1)

<1> historic england, 2014, Hoo Peninsula Outline Historic Area Assessment: Cooling Parish. Research Report 51-2014. (Bibliographic reference). SKE31592.