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Appeals. Persons dissatisfied with any action of the Tree Board may appeal such action pursuant to Chapter 17.455 SMC. Persons dissatisfied with any action of the City Arborist may appeal such action to the Tree Board and such decision may be further appealed to the City Council.

“Diameter at breast height (d.b.h.)” means the diameter of a tree measured four and one-half feet above the surrounding grade.

“Escaped exotic” means a tree that is a member of any of the following species:

Common Name

Scientific Name

Acacias and wattles,
all species

Acacia sp.

Tree of heaven

Ailanthus altissima

Plume albizia

Albizia lophantha,
A. distachya

Eucalyptus, all species

Eucalyptus sp.

Tamarisk and salt cedar,
all species

Tamarix sp.

Poplars, all species

Populus sp.

Monterey pine

Pinus radiata

“Protected native tree” means a tree with a minimum d.b.h. of 10 inches if it has a single trunk, or which has at least one trunk with a minimum d.b.h. of 10 inches if the tree has two or more trunks, on all properties other than single-family or duplex residential properties, and with a minimum d.b.h. of 20 inches on single-family or duplex properties, and which is also a member of any of the following species:

Common Name

Scientific Name

Bigleaf maple

Acer macrophyllum

Box elder

Acer negundo ssp. californica


Aesculus californica

White alder

Alnus rhombifolia


Arbutus menziesii


Crataegus douglasii

Oregon ash

Fraxinus latifolia

Douglas fir

Pseudotsuga menziesii

Coast live oak

Quercus agrifolia

Oregon oak

Quercus garryana

Black oak

Quercus kelloggii

Valley oak

Quercus lobata

Any naturally occurring hybrid of Quercus species listed above

California bay

Umbellularia californica

Sandbar willow

Salix hindsiana

Yellow willow

Salix lasiolepis

Red willow

Salix laevigata

Coast redwood 1 , 2

Sequoia sempervirens

Tanbark oak

Lithocarpus densiflora

California black walnut

Juglans hindsii

1Generally not appropriate as a replacement tree. Therefore, if proposed as a replacement tree, the request should be reviewed and approved by the City Arborist.

2Not indigenous to Sebastopol. However, this species is perceived by the public to be native to the area.

Sebastopol Tree Board. The Design Review Board is hereby established as the Sebastopol Tree Board, to consider applications for tree removal permits pursuant to SMC 8.12.060. Said Tree Board shall also have as its staff advisor a certified arborist appointed by the City Manager, to present and report on applications, public and private.

“Tree protection zone” means the area measured at the dripline of the most exterior portion of a tree’s crown, or as otherwise determined by the City Arborist.

“Tree removal” means the destruction or displacement of a tree by cutting, bulldozing, or other mechanical or chemical means, which results in the removal of more than one-third of the crown or roots of a tree, physical transportation of a tree from its site, and/or death of a tree.