"If the Lessee shall serve on the Board a counter-notice calling upon the Board to negotiate with them as aforesaid then the parties hereto shall forthwith consult together and use their best endeavours to reach agreement as to the amount of the rent to be paid hereunder as from.... the expiration of the 30th and 45th years but failing agreement within one month after service of such counter-notice (or within such such extended period as the parties hereto shall mutually agree) the question of whether any and if so what increase ought to be made in the rent payable hereunder as from ........ the expiration of the 30th or 45th year shall be referred to the valuation of a single valuer who (failing agreement between the parties hereto) shall be nominated on the joint application of the parties hereto (or if either of them shall neglect forthwith to concur in such application then on the sole application of the other of them) by the President for the time being of the Royal Institution of Chartered Surveyors.
"(1) A declaration that upon the true construction on the above- mentioned Lease the demised premises for the purposes of the valuation to be conducted by reference to clause 1(4) in determining rent payable from the24 June 1994 comprises the piece of land having an area of 3,420 sq yds described in clause 1 without any buildings or other structures thereon.
"They are questions of interpretation which the expert has necessarily to undertake along the way to determine the rent."
"Although it is not strictly necessary for me to do so, I should add a word concerning factors which would have affected my discretion if I considered that I had one. It is plain that there has been serious delay in this rent review. However, I do not consider that this delay had caused the landlord significant prejudice, since Mr Brock was prepared to concede that the landlord should be protected by the payment of interest at the going judgment rate since6 June 1997 . It is true also that all the matters have already been ventilated before the expert, but it seems to me that this is principally a question of costs, which the tenant is perfectly capable of paying. In the end, I consider that the questions being both seriously arguable and central to the question of valuation and having potentially a very substantial effect on the determination should have been decided by the court, and I would have exercised my discretion to permit the originating summons to proceed, staying the rent review proceedings if necessary."
"On this question of interpretation, each agreement must depend on its own terms, read in its own context. Comparing one case and one document with another gives, at best, very limited assistance."
"..the question of whether any or if so what increase ought to be made in the rent payable.."
"In my view, the key question on this application is whether the society is entitled to have the court, rather than Mr Reilly [the expert], determine the matters raised by the originating summons. If yes, then an injunction will follow, subject always to questions of the so-called balance of convenience. If not,not. Whether the society is so entitled in turn depends on what, as a question of interpretation of the funding agreement, is the ambit of the matters entrusted by the parties to the nominated arbiter for determination by him....... If, on the proper construction of the agreement, the question sought to be put to the court is an issue within the scope of the matters remitted to the nominated arbiter, then (by definition) the parties have chosen, for better or for worse, to have that question determined by a tribunal other than the court.
"So in questions in which the parties have entrusted the power of decision to a valuer or other decision-maker, the courts will not interfere either before or after the decision. This is because the courts' views about the right answer to the question are irrelevant. On the other hand, the court will intervene if the decision-maker has gone outside the limits of his decision-making authority.