261. Extent of the obligation.

261.     Extent of the obligation.

The obligation to complete includes an obligation to provide anything which is indispensably necessary to complete the work1. This may include work not mentioned in the contract2, work inaccurately described in the drawings, specification or bill of quantities3, work required to overcome unforeseen problems in the ground4 or in the method of working5 and work required to obtain the satisfaction of the architect where that is a contractual criterion6. Whether the contractor is responsible for the design of the building or engineering works depends on the terms of the contract. Where the