A. Generally. Within twelve (12) months after City approval of a land partition, a partition plat shall be submitted to Multnomah County in accordance with its final partition plat and recording requirements.

B. Extension. After expiration of the twelve (12) months period following partition approval, the partition must be resubmitted for new approval. The Commission may upon written request by the applicant, grant an extension up to twelve (12) months upon a written finding that the facts have not changed to an extent sufficient to warrant refiling of the partition and that no other development approval would be affected.