Definition: prevailing street wall frontage (General Definition)
A “prevailing street wall frontage” shall refer to block frontages where, within 150 feet of the street wall of a subject building , at least half of the aggregate width of street walls on the same side of the block are within two feet of the average distance of such street walls from the street line . The total aggregate width of street walls shall not be less than 100 feet. The 150-foot selection may be measured in either direction from the subject property, or may be the total dimension extending from both directions (see illustration below). For the purpose of calculating the average distance of street walls from the street line , the distance of each street wall segment, with a width of at least five feet, from the street line shall be multiplied by its width. The sum of the products thus obtained, divided by total length of aggregate width of street walls within the 150-foot selection, shall result in the average distance. To determine whether the street wall on the subject property is eligible to utilize certain street wall location modifications applicable to prevailing street wall frontage , the percentage of street wall segments that are within the 150-foot selection and within two feet of such average distance, shall be greater than 50 percent.