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Showing posts from March, 2026

The Hidden Map: Why Nearly Half of Vashon is Now "Off-Limits"

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​If you look at a topographic map of Vashon Island, the reality of our landscape is striking. Between the steep coastal bluffs and our interior wetlands, roughly 30% to 35% of the island is geographically "unbuildable". ​However, the map tells only half the story. ​The "Setback" Trap ​What many homeowners don't realize is that King County doesn't just prohibit building on a slope or in a wetland; they also enforce significant "buffers" or setbacks. Depending on the classification of the critical area, these setbacks can reach 200 feet or more . When you add these regulated buffer zones to the actual hazards, it effectively means nearly half of Vashon Island is now considered non-buildable by the county. ​A False Sense of Security ​This shift in regulation has created a precarious situation for long-time residents. ​ Legacy Homes: Vashon’s iconic beach houses and forest cabins were almost all built long before th...