Issaquah environmental board urges keeping 1-to-1 tree replacement, asks for landmark protections and limited downtown flexibility

At the June meeting of the Issaquah Environmental Board, members reviewed proposed amendments to the city’s tree code and recommended keeping a straightforward 1-to-1 replacement requirement for hazardous tree removals while allowing limited flexibility for major redevelopment in the Central Issaquah subarea.

Board members said simpler rules would ease compliance for homeowners and limit illegal removals while the city builds inventory and programmatic supports. Several members expressed support for keeping the 1-to-1 replacement requirement and for replacing landmark trees at a higher ratio.

Why it matters: The board’s feedback will be forwarded to the Planning and Policy Commission and City Council as the city updates tree preservation, replacement and canopy coverage rules. The revisions are tied to the city’s climate action and urban forestry goals and affect redevelopment, storm and wildfire resilience, and neighborhood character.

Most important details

- Consensus on 1-to-1 replacement: Board members indicated a preference to retain a 1-to-1 replacement rule for hazardous or nuisance trees to keep the permit process simple for homeowners and staff. "If the process isn't too onerous ... people will apply," one board member said during the discussion. (Board members discussed enforcement concerns and cost barriers.)

- Landmark trees: Members asked for stronger treatment for very large, high‑value "landmark" trees, including higher replacement ratios (the board discussed 1-to-2 as a possible standard) or stricter limits on removal when development plans would otherwise remove such trees.

- Canopy targets tied to lot size/zoning: Staff proposed replacing neighborhood‑level canopy targets with percentages based on land use and lot size (for example, lower percentages for small single‑family lots and larger targets for larger lots and certain zones). The board generally supported using lot/zoning methodology rather than neighborhood averages because parcel‑level planting capacity varies.

- Redevelopment and new development: The board agreed the canopy coverage calculations should apply primarily to new development and major redevelopment (the draft defines redevelopment by building value thresholds), while hazardous tree removals would remain a separate, simpler permit track with 1-to-1 replacement.

- Flexibility for Central Issaquah subarea: Staff proposed criteria allowing reduced preservation requirements in the Central Issaquah subarea — the designated higher‑intensity growth area — when tree removal is necessary for site access, essential utilities, or unavoidable building placement. The board supported limited flexibility but asked staff to add explicit protections for landmark trees and ensure replacement requirements or fee in‑lieu payments still produce net canopy benefit for the city.

Public comment and concerns

A resident who spoke during public comment criticized how mitigation and monitoring have been handled on several recent projects and urged stronger code enforcement and clarity in mitigation tracking. "If the city is gonna be green, it should be green itself, not conveniently green," the resident said. Board members referenced those comments during their discussion of enforcement and monitoring.

Costs, exemptions and practicalities

Board members and staff noted the administrative burden of allowing an exemption that would require parcel‑level canopy calculations: the code currently expects a qualified professional to prepare canopy calculations, and staff said that approach could add several hundred dollars in costs to a permit. For that reason the board favored retaining a simple 1-to-1 replacement track for hazardous removals rather than a widespread exemption requiring professional canopy inventories.

Next steps

Board members asked staff to draft a brief letter summarizing the feedback on the policy questions for the Planning and Policy Commission; staff said they would prepare the draft for board review and routing to the commission and City Council. The board also asked staff to continue public education and programmatic work (tree giveaways, subsidies, outreach) to reduce illegal removals and help lower‑income homeowners meet planting requirements.

Ending

Board members said they support a mix of clear regulatory requirements and expanded city programs to make compliance practical. Staff will bring a draft comment letter to the board for review and forward the board’s recommendations to the Planning and Policy Commission and City Council.