Nothing in this chapter shall be construed to prevent the ordinary maintenance or repair of any exterior architectural feature of any property which has been designated a landmark or which is situated in a designated landmark district that does not involve a change in design, material color or outer appearance thereof, nor to prevent any environmental change that the Division of Building, Division of Fire or Department of Public Health and Welfare shall certify in writing is required by the public safety because of an unsafe or dangerous condition.
(Ord. No. 84-71. Passed 6-21-71, eff. 6-23-71)