1. Modification of or addition to any pre-existing single family dwelling or accessory structure that predates this ordinance. This exemption shall not include an increase in the number of units or change in use;

2. Fire breaks and fire roads required by the Bakersfield fire department;

3. Recreation trails for pedestrian, equestrian, or multi-use purposes;

4. Lot line adjustments;

5. Landscaping on single-family parcels;

6. Modifications to yard, height, lot area and fence/wall regulations;

7. Public works projects determined by the city council to be necessary for the public health, safety or welfare which, by implementation of this ordinance, would create an unfair cost to the community;

8. Where it can be demonstrated that the imposition of the standards in this chapter would render an existing parcel (parcel created prior to adoption of the ordinance codified in this chapter) of land unbuildable and create a loss of all economic use, or where the development exhibits innovation and/or exceptional community benefits which cannot be realized through imposition of the standards contained in this chapter, development consistent with the general plan may be allowed, subject to the following provisions: