NEC ECC: Contractor change to Works information

NEC ECC Option C. Contractor changes methodology from that priced for and stated in their tender. As a result of this, obstacles such as poor ground and services, which would not have been a problem should the tender methodology been followed, became a problem for the revised method of work.
Is this a Compensation Event?


Yes - this would be a compensation event, and more importantly no contractual clause that says “unless you changed your method of working”.