Tree Removal in Black Diamond

What You Need To Know About Tree Removal In Black Diamond

AIn Black Diamond, a “significant tree” is defined as any healthy tree of 6 inches DBH or greater (with special consideration for multi-stemmed trees: if one stem is ≥4 inches measured 6" above the root flare, it's considered significant). Black Diamond+1

When a Tree Removal Permit Is Required

• Removal of any significant tree on private property (unless exempt) requires a Tree Removal Permit under the city’s code. Black Diamond
• For lots undergoing development, construction, clearing, or land‑use change — tree removal must be approved under the city’s clearance/permit system. Black Diamond+1

Replacement / Mitigation Requirements

If a significant tree is removed:

• The permit requires replacement on a 1:1 ratio (one new tree for each removed significant tree), unless the applicant opts to pay a mitigation fee ($500 per tree) instead of replacement. Black Diamond
• Replacement trees must meet certain standards: native trees are preferred; deciduous replacements must be at least 1.5″ caliper, evergreens at least 6 ft tall; planting location and species must suit long-term growth, and planting must comply with acceptable nursery‑stock standards. Black Diamond

Exemptions & Conditions for Removal Without Permit (or Under Special Permit)

The city allows exemptions for removal without full permit under limited conditions, provided an Exemption Application is filed: Black Diamond+1

Examples of such exemptions:

• Emergency removal of hazardous significant trees that pose imminent risk to life or property. Black Diamond+1
• Removal of obviously dead or diseased significant trees (with prior exemption application). Black Diamond
• On lots with no ongoing development, removal of up to six significant trees under 16″ DBH in any 36‑month period — as long as at least two significant trees remain and removal doesn’t lower the approved “significant‑tree density.” Black Diamond+1
• Trees of certain exempt species (e.g. native alder, cottonwood, willow, or certain poplars) are considered “nonsignificant” under code — those may be removed without standard permit requirements (though rules may vary). Black Diamond+1

What Canopy Solutions, LLC Can Do for Black Diamond Clients

We can:

• Evaluate your property and tree inventory to determine whether removal qualifies for permit or an exemption under city code.
• Prepare and submit either a full Tree Removal Permit or Exemption Application, depending on the circumstances (development vs. small‑lot residential, hazard vs. healthy tree, etc.).
• If required, plan and implement replacement or mitigation: help select appropriate native species, ensure correct sizing at planting, and schedule planting to meet code requirements.
• Advise on strategies to stay within exemption limits (e.g. limiting number of removals, managing tree density) — useful for small residential lots.
• Coordinate with arborists to assess tree health, hazard, or risk — especially for hazardous or diseased trees that may qualify for exemption.

Important Notes for Black Diamond Property Owners

When using the exemption option, ensure all criteria are met (non‑development status, no critical-area easements, minimum retained tree count, etc.) before proceeding.

Even apparently “harmless” tree removals may require permit or exemption application if the tree is 6″ DBH or larger.

Removing several trees at once can trigger replacement or mitigation obligations (new trees or mitigation fee). Plan accordingly.

If your lot is undergoing development, clearing, or land‑use change — expect stricter oversight; plan your tree‑work early, and integrate into development permitting.