Where a development exists at the effective date of adoption or amendment of the ordinance codified in this code that could not be built under the terms of this code by reason of restrictions on lot area, lot coverage, height, yard, equipment, access, parking, landscaping, its location on the lot or other requirements concerning the development, and the development was lawful when constructed, the development may remain on the site so long as it remains otherwise lawful, subject to the following provisions:
A.
Alterations. No such nonconforming development may be enlarged or altered in a way that increases its nonconformity by more than 20 percent cumulatively (e.g., floor area and/or lot coverage and/or height and/or amount of measurable impact as in noise, glare, vibration) as of November 5, 2008, but any development or portion thereof may be enlarged or altered in a way that satisfies the current requirements of this code or will decrease its nonconformity. An existing nonconforming single-family dwelling development may be converted to a duplex subject to the standards of this subsection.
B.
Destruction. Should such nonconforming development or nonconforming portion of development be destroyed by any means to an extent more than 70 percent of its current value as assessed by the county assessor, it shall be reconstructed only in conformity with this code.
C.
Deterioration. Should such nonconforming development or nonconforming portion of development become deteriorated to the extent that it has been declared a “dangerous building” and ordered demolished pursuant to Silverton’s dangerous and derelict structures code (SMC § 15.08.360 et seq.), the nonconforming status shall be deemed terminated upon such declaration and order.
D.
Roadway Access. The owner of a nonconforming access connection (i.e., street or highway access) may be required to bring the nonconforming access into conformance with this code and other applicable standards as a condition of the city or other roadway authority approving a new access connection permit, or a change in land use.
E.
Vehicular Parking Spaces. When a development is nonconforming in the number of required vehicular parking spaces and changes to a use or building are made that increase the number of required vehicular parking spaces, only the number of vehicular parking spaces related to the increase in square footage of the building need to be provided.
F.
Relocation or Removal. Should such development be moved for any reason and by any distance, it shall thereafter conform to the regulations of this code.
G.
Remedy Nonconforming Development or Lot. Prior to occupancy after discontinuation or abandonment of a nonconforming development or lot, the subject development or lot, as applicable, must be brought up to current code standards or be removed.
(Ord. 08-06 § 3, 2008; Ord. 21-04 § 24, 2021)