These houses appear between the 1904 and 1930 OS revisions and are likely to date to the initial expansion of Carcroft after the establishment of Bullcroft Main Colliery in 1907-1910 (Taylor 2001; Scheduled Ancient Monument 2002). Houses have small rear yards and passageways affording rear entry. The plot used reflect the former shape of a portion of the wetland common from which Carcroft gets its Old Norse / Old English place name. (Kjarr ON -marsh / Croft OE enclosure) (Wheeler 1994). Plot sizes 0.008 -0.001ha.