A Zoning Petition which amends Article 8.000 of the Cambridge Zoning Ordinance

In all districts the Board of Zoning Appeal may grant a special permit for the alteration or enlargement of a preexisting dimensionally nonconforming detached single-family dwelling or two-family dwelling, not otherwise permitted in Section 8.22.1 above, but not the alteration or enlargement of a preexisting nonconforming use, provided that there is no change in use and that any enlargement or alteration of such preexisting nonconforming detached single-family dwelling or two-family dwelling may only increase a preexisting dimensional nonconformity but does not create a new dimensional nonconformity.

In order to grant the special permit the Board of Zoning Appeal is required to find that the alteration or enlargement shall not be substantially more detrimental than the existing nonconforming structure to the neighborhood, and that the alteration or enlargement satisfies the criteria in Section 10.43.