If you suspect that you have a dead, diseased, or otherwise dangerous tree on your property, most arborists suggest that it be removed before it causes damage to your property or infects any neighboring trees. If it is an imminent and dangerous threat, the tree should be removed immediately. However, the City requires that you obtain a no-cost tree cutting permit to do so. It s not only because of aesthetics. Tree removal without subsequent tree replacement can cause potential water runoff problems for your property and neighboring properties as well.
Permits can also help to avoid accidental cutting of trees on public property.
As indicated above, you can remove any tree that is considered dangerous. If you wish to remove one or more healthy trees from your property, you should consult with a city planner. Depending on the size of your lot, you may be able to remove between two and eight trees a year with the appropriate permit. If ten or more trees are being removed from a property, a clearing and grading permit is required. Washington case law has determined that in these instances, it's a civil matter between the neighbors involved.