21.4.D Applicability of Bulk and Yard Requirements

All structures erected after the effective date of this Ordinance shall meet the bulk and yard requirements for the zoning district in which the structure is located. No existing structure may be enlarged, altered, reconstructed, or relocated in such a manner that conflicts with the requirements of the zoning district in which the structure is located, unless a variance is approved by the Board of Zoning Adjustments. Structures that are legally nonconforming as to the bulk and yard requirements may be maintained, structurally altered, or increased in cubical content, provided such alteration or increase in cubical content shall not further increase the extent of the nonconformance or permit an increase in the number of dwelling units.