Tree removal permit rules: Lake Oswego vs Oregon City, Oregon

A side-by-side comparison drawn from each city's tree-protection ordinance. For the underlying full ordinance text, see the Lake Oswego ordinance page or the Oregon City ordinance page.

Side-by-side comparison

Field Lake Oswego Oregon City
Protected tree definition Regulated tree: 5 inches DBH or greater on most properties. Heritage trees designated separately for exceptional significance. Sensitive Lands overlay adds additional restrictions. Significant tree: 6 inches DBH or greater on development sites. Tree preservation required during land use review.
Heritage / landmark trees Heritage Tree designation for exceptional size, species, age, or historical association. Tree preservation framework under Oregon City Municipal Code Chapter 17.41 (Protection of Trees) applies to significant trees on development sites; heritage-level protection accrues to trees of exceptional size, species, age, or historical significance designated through the chapter's preservation provisions.
Who can apply Property owner or authorized agent with arborist report Property owner or authorized agent with arborist report
Replacement ratio Based on tree size category and reason for removal Inch-for-inch caliper mitigation or tree unit replacement
Replacement details On-site replacement with minimum caliper standards; in-lieu fee available. On-site replacement preferred; fee-in-lieu when infeasible.
Typical processing time 3-6 weeks 4-6 weeks
Permit fee $220.00 Not documented
Permitting department Planning and Building Services Community Development Department
Municipal code View ordinance → View ordinance →

How they differ

Which city has stricter heritage tree protections, Lake Oswego or Oregon City?
Both Lake Oswego and Oregon City maintain heritage / landmark tree designations. Lake Oswego: Heritage Tree designation for exceptional size, species, age, or historical association. Oregon City: Tree preservation framework under Oregon City Municipal Code Chapter 17.41 (Protection of Trees) applies to significant trees on development sites; heritage-level protection accrues to trees of excep…
Where is a tree removal permit processed faster, Lake Oswego or Oregon City?
Lake Oswego publishes a typical processing time of 3-6 weeks; Oregon City publishes 4-6 weeks. Compare each city's published timeline and plan removal accordingly — emergency-tree provisions may shorten the wait in either city.
Where are tree replacement obligations heavier, Lake Oswego or Oregon City?
Lake Oswego requires a replacement ratio of Based on tree size category and reason for removal. Oregon City requires a replacement ratio of Inch-for-inch caliper mitigation or tree unit replacement. Lake Oswego: On-site replacement with minimum caliper standards; in-lieu fee available. Oregon City: On-site replacement preferred; fee-in-lieu when infeasible.

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