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Sammamish Planning Commission reviews draft scaling impact-fee methodology, debates affordability and update cadence
Summary
The commission reviewed a consultant'backed formula and draft Sammamish Municipal Code to move impact fees from a flat per-unit charge to a square-foot scaling method, discussed fee amounts, affordability tiers for 30'80% AMI, indexing versus CIP-based updates, and next steps ahead of a Feb. 3 council briefing.
The Sammamish Planning Commission on Jan. 15 continued its multi-meeting review of proposed changes to the city's impact-fee program, hearing staff and consultant explanations of a scaling methodology and a draft code rewrite that would consolidate impact-fee rules into one Sammamish Municipal Code section.
Staff said the goal of the update is to produce a legally defensible fee structure that scales with building size rather than charging a flat per-unit fee. Staff presented consultant outputs that show a parks scaling rate of $3.13 per square foot and a transportation scaling rate of $7.44 per square foot as reference points for fee bands. Staff emphasized the fee formula uses the capital facilities list, project eligibility percentages and the comprehensive-plan growth estimate of 2,100 new housing units over 20 years (roughly 6,000 people) as core inputs.
Why it matters: the Legislature in 2023 required jurisdictions to move away from a flat per-unit fee toward a scaling method…
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