22.44.950

Other

• Oak tree removal prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance. for accessory usesAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office.

  Removal of oak trees or encroachment in the protected zone shall be prohibited for accessory uses or structures.

• Excavation restriction within protected zone

  any excavation or grading allowed within the protected zone or within 15 feet of the trunk of a tree, whichever distance is greater, be limited to hand tools or small hand-power equipment

• Protective fence heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. around protected zone4 ft

  installation of chain link fencing not less than four feet in height around the protected zone

• Heritage oak diameter threshold36 in

  any oak tree measuring 36 inches or more in diameter, measured four and one-half feet above the natural grade

• Minimum oak tree diameter requiring permit6 in

  six inches or more in diameter, as measured four and one-half feet above mean natural grade

• Mitigation ratio if tree lost due to development10 to 1

  Should any of these trees be lost or suffer worsened health or vigor as a result of the approved development, the applicant shall mitigate the impacts at a 10:1 ratio

• Monitoring period for encroachment under 30% of protected zone10 years

  Where development encroaches into less than 30 percent of the protected zone of native trees, a condition of the CDP shall require that each affected tree shall be monitored annually for a period of not less than 10 years.

• Additional mitigation trees if off-site not in same watershed2 trees

  Any off-site mitigation not located within a site that is in the same watershed shall require an additional two mitigation trees per removed or encroached tree

• Protected zone definition

  area within the dripline of an oak tree and extending therefrom to a point at least five feet outside the dripline, or 15 feet from the trunks of a tree, whichever distance is greater

• Replacement tree maintenance period7 years

  Replacement trees shall be properly cared for and maintained for a period of seven years

• Minimum replacement tree size1 gallon

  at least a one-gallon size specimen and measure at least one inch in diameter one foot above the base