487. Recovery of the cost of work.

487.     Recovery of the cost of work.

Where an arbitration relates wholly or partly to a question as to the liability of the tenant1 to do work specified in the notice to do work2 and it appears to the arbitrator that the tenant has done work specified in the notice which he was under no obligation to do, the arbitrator must determine the reasonable cost of such work, which is then recoverable from the landlord3.