For a R-3 use or occupancy with a firewall on two (2) sides, a firewall can be erected on a maximum of 85% of the total length of each side property line; provided that all firewall construction shall not exceed 65% of the total perimeter of the R-3 property, i.e., total length of all property lines; provided that firewalls in R-3 lots shall only be allowed for a maximum two (2) storey component structure; and provided further that all the applicable stipulations of the Fire Code are strictly followed; and