Hi Nick, congratulations on your persistence!!
I love the way such a substantial house is called a cottage.

And it is of course possible that it's been demolished in the time since the photo, and that's why you can't find it on Google.
One thing occurs to me, what about doing a detailed scan in closeup of the figure, to see if we can date it rather more closely - the photo restoration board dating experts are very good at this.
Is it a dog, standing next to the servant?