Tree removal permit rules: Lake Oswego vs Medford, 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 Medford ordinance page.

Side-by-side comparison

Field Lake Oswego Medford
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 development per land development code.
Heritage / landmark trees Heritage Tree designation for exceptional size, species, age, or historical association. Not documented
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
Replacement details On-site replacement with minimum caliper standards; in-lieu fee available. On-site replacement preferred; fee-in-lieu to tree fund when infeasible.
Typical processing time 3-6 weeks 4-6 weeks
Permit fee $220.00 Not documented
Permitting department Planning and Building Services Planning Department
Municipal code View ordinance → View ordinance →

How they differ

Which city has stricter heritage tree protections, Lake Oswego or Medford?
Lake Oswego has a heritage tree program (Heritage Tree designation for exceptional size, species, age, or historical association.). Medford does not document a heritage / landmark designation in its ordinance, so heritage protections are stricter in Lake Oswego.
Where is a tree removal permit processed faster, Lake Oswego or Medford?
Lake Oswego publishes a typical processing time of 3-6 weeks; Medford 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 Medford?
Lake Oswego requires a replacement ratio of Based on tree size category and reason for removal. Medford requires a replacement ratio of Inch-for-inch caliper mitigation. Lake Oswego: On-site replacement with minimum caliper standards; in-lieu fee available. Medford: On-site replacement preferred; fee-in-lieu to tree fund when infeasible.

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