11.1 If the parties fail to agree on the amount of any payment due from either party to the other under this Lease then either party may refer the matter to an Independent Surveyor.
11.2 The Independent Surveyor shall be appointed jointly by the parties, but in default of agreement either party may apply to the President of the Royal Institution of Chartered Surveyors requesting the appointment of an Independent Surveyor.
11.3 If the appointed Independent Surveyor dies or becomes unwilling or incapable of acting then either the Landlord or the Tenant may apply to the President of the Royal Institution of Chartered Surveyors to discharge the appointed Independent Surveyor and to appoint a replacement.
11.4 The Independent Surveyor shall act as an arbitrator in accordance with the Arbitration Act 1996.
11.5 The Landlord and the Tenant agree to pay the Independent Surveyor's costs in the proportions determined by the Independent Surveyor within fourteen days after a demand for payment. If they are not so paid, the party against whom the costs were not awarded shall be entitled to pay the Independent Surveyor the sums due and recover the amount from the other party on demand.