Minimum lot requirements in an R-3 District shall be eleven thousand five hundred (11,500) square feet. All buildable lots must have seventy five feet (75') of frontage on a public street, unless an alternative is approved by the City through normal subdivision procedure (i.e., cul-de-sac and flag lots), or unless a lot is nonconforming (see section 17.06.980 of this title). (Ord. 1691 §1(part), 1982)