Answered: NEC3 ECC: Option A itemised Activity Schedule - can I raise an EW if I feel client is asking for contractor to complete more work than we assessed was required.

If the area marked out is greater then that shown on the drawings then there has been a changed in the Works Information and it is a CE. Whether the original area billed was equal to the area shown on the drawings is academic (this was the contractor's risk unless the BOQ is stated as Works Information)