That the condition was not created by the applicant. A self-created difficulty will be found if the applicant knew or should have known of the specific restriction or provision at the time the site was purchased. Self-created hardship also results when an owner and/or developer negligently or knowingly violates a provision of this chapter. A substandard lot, deliberately made so by the owner's conveyance, is considered a self-created hardship. Violations made in good faith, or circumstances arising from pre-existing conditions or circumstances, are treated more leniently, as is the condition of an area deficiency created by the expansion of a public right-of-way, public utility easement or other public use in the public interest.