This is what they have been building up on Penistone Hill above Haworth. It is a replica of Haworth Parsonage, where the three Brontë sisters, Charlotte, Anne and Emily, lived with their clergyman father, Patrick, and their brother, Branwell.
When they lived there, the house lacked the additional gable that the real building now has. That was added by the clergyman, John Wade, who lived there after the Brontës. (He had 'private means' and was considerably better off than the impoverished writers.) Furthermore, the actual Parsonage is now deep in trees, which have also been planted since the family lived there. The film makers have decided to create something more authentic to the period (1840s) rather than try and film round the Parsonage itself, though they are, I believe, going to film some scenes in Haworth's actual main street too.
When I went to look, they were still busy painting the railings and adding the finishing touches to the set. Considering it is a light wooden structure, I think it looks astonishingly realistic, don't you?
I have added a photo below of the Parsonage as it is today, for comparison. The graveyard is still there but it was behind me in the photo below, beyond the garden wall.