“The test of whether an actionable interference is not whether what the grantee is left with is reasonable, but whether his insistence on being able to continue to the use of the whole of what he contracted for is reasonable.” 61. In relation to (i), this comes from a statement of Russell LJ (with whom Davies LJ and Sellers LJ agreed) in Keefe v Amor [1965] 1 Q.B. 334 at paras C-D on page 347 who said (with express reference to private rights of way): “I would remark that it is sometimes thought that the grant of a right of way in respect of every part of a defined area involves the proposition that the grantee can object to anything on any part of the area which would obstruct the passage over that part. This is a wrong understanding of the law. Assuming a right of way of a particular quality over an area of land, it will extend to every part of that area, as a matter, at least, of theory. But a right of way is not a right absolutely to restrict user of the area by the owner thereof. The grantee of the right could only object to such activities of the owner of the land, including retention of obstruction, as substantially interfered with the use of the land in such exercise of the defined right as for the time being is reasonably required.” 62. Although obiter in Keefe v Amor, this was approved and followed by the Court of Appeal in, inter alia, Celsteel (and from thence into Briggs J’s principles in Zielenewski) and Taylor v Burton & Burton[2014] EWCA Civ 21 . 63. Accordingly, the burden of proof is on the Claimants to prove to the civil standard that the obstruction of the right of way as to 400mm by the New Fence at the outbuilding substantially interferes with their exercise of their right of way “as for the time being is reasonably required” by them.” i) Not every interference with a right of way is actionable. The owner of the right of way may only object to activities, including obstruction, which substantially interfere with the exercise of the defined right as for the time being is reasonably required by him; ii) The fact that an interference is infrequent and, when it occurs, is relatively fleeting, does not mean that the interference cannot be actionable; iii) The question whether the owner reasonably requires to exercise his right in a particular way is to be addressed by convenience rather than necessity or even reasonable necessity – the question is can the right of way be substantially and practically exercised as conveniently as before? iv) Thus, if an obstruction interferes with a particular mode of exercise of the right which is neither unreasonable nor perverse of the owner to insist upon, then the obstruction will be an actionable interference even if there remain other reasonable ways of exercising the right which many, or even most, people will prefer; v) As Blackburne J put it in [B&Q [sic] Properties]: “The test of whether an actionable interference is not whether what the grantee is left with is reasonable, but whether his insistence on being able to continue to the use of the whole of what he contracted for is reasonable.” “I would remark that it is sometimes thought that the grant of a right of way in respect of every part of a defined area involves the proposition that the grantee can object to anything on any part of the area which would obstruct the passage over that part. This is a wrong understanding of the law. Assuming a right of way of a particular quality over an area of land, it will extend to every part of that area, as a matter, at least, of theory. But a right of way is not a right absolutely to restrict user of the area by the owner thereof. The grantee of the right could only object to such activities of the owner of the land, including retention of obstruction, as substantially interfered with the use of the land in such exercise of the defined right as for the time being is reasonably required.”