Neighbours and us have an alley between our houses. The deeds show this as belonging to the two houses. For some reason the alley extends a long way into our respective gardens. We have to enable access of our semi detached neighbour across our garden as well.
Our gardens are very small and neighbour at house A wants us to divide the alley down the midline and put gates further down so the alley doesn't extend right into the garden. The access to our neighbour will be maintained. (see diagram).
Is this as straightforward as it seems, assuming we both agree?