The inscription above the closed-up doorway is difficult to read, but appears to say, "God Bless the [...] of Edinburgh who built this house 16[...]5".
The inscription on the lintel is: "God bless the baxters of Edinbrugh [sic]who built this house 1675". The Ancient Incorporation of Baxters (bakers) had a long association with Dean Village, where there were several mills which provided the baxters with flour.