A. For residential and nonresidential development. The impact fee for a nonresidential development shall be computed by applying the traffic impact fee formula set out in VMC 20.915.040. The impact fee for a residential development shall be computed by applying the traffic impact fee, park impact fee and school impact fee formulae set out in VMC 20.915.050 and 20.915.060, combining the results; provided, that the school impact fee component shall not apply to housing which by restrictive covenant is exclusively for persons 62 years of age or older.

B. For mixed uses. If the development for which approval is sought contains a mix of uses, the impact fee must be separately calculated for each type of use.

C. Criteria to reduce or eliminate impact fees. An administrative appeal may be considered by the director of community development to reduce or eliminate impact fees by submittal of an application prior to the payment of fees. Appeals shall be reserved for unusual circumstances which make the standard impact fee as applied to the development unreasonable. Upon receipt of an application for any such appeal, the city shall distribute a written notice of appeal and a copy of the supporting studies and data required below to the office, department, or school district responsible for the applicable capital facilities for which the impact fee is imposed. The appeal must be supported by reasonable studies and data provided by the applicant showing that: