I was indeed MartinR
This is recorded as a rare example of an integral dovecote in the upper room (it's full of nesting boxes built into the inner face of the brickwork), hen-house in the middle room (solid brick floor laid over timber to collect the droppings) and pigsties in the lower room. Dating from the early eighteenth-century, all three uses were majorly important to a small - moderate sized farm (Burnt House Farm), which got its name from the burning down of a large mansion in the early eighteenth-century. Parts of the earlier mansion's diaper brickwork (patterned with darker bricks) can be seen in the surviving farmhouse. As for the dovecote, it is assumed this, and the adjacent barn/stables, were constructed during the formation of the farm from the burnt ruins, the lands of which were subdivided firstly by the construction of the main Ashford - Canterbury Road (A28) in the early 1830's to the north, then by the Ashford - Canterbury Railway to the south in 1846.
Whilst JohnWalker got the location, it was the function I needed also, so over to you MartinR